Hibernate Criteria Query To Get Specific Columns

Hello, I need to update a single column in my table using criteria. subclassId matches the entity class name alphabetical order, this is not very reliable in the long run. iterate() methods is available at Hibernate - list() and iterate(). This page will walk through Hibernate make entity read only example with Session. Notice that the DTYPE column is used to filter only the Post entities. When you need to add multiple types of criteria, you can use the OR row and also add criteria rows. It is powerful, highly efficient Object-Relational Persistence and Query Service for any kind of Java application. In short, inserting and fetching BLOB data such as images requires two steps: define database column type as "BLOB" and have a field in entity of type "byte array". When I do query I know which columns I need. Domain Model. txt) or read online for free. everyoneloves__bot-mid-leaderboard:empty{. Benefits of hibernate over JDBC?Hibernate is database independent while in case of JDBC, developer has to write database specific queries. It also selects an effective way to perform a database manipulation task for an application. We will learn to create various custom dynamic queries with multiple MongoDB operators to get started. The pagefragment contains a table with a query component. Hibernate suggest to use javax. There is no explicit "group by" necessary in a criteria query. It is an open-source technology which fits well both with Java and. Ask Question Hibernate Criteria Query for multiple columns with IN clause and a subselect. HQL query how to select only password based on username using HQL query from login table where uname and paswrd are two column names Display Sum of Table Column Using In JSP Display Sum of Table Column Using In JSP an application to Display the sum data of a Table column for a specific Date. Wrapping an OO model on top of SQL is tough, and this piece walks through various design choices. Anyway, that SQL did what I expected it to do, and I hope it's what you want. I converted it to criteria, and this is the resulting code:. I would like to hear your ideas / comments how to port following code to jOOQ. Here in this post coding compiler presenting a list of 75 advanced hibernate interview questions for freshers, 1 year experience, 2 years experience, 3 year experience, 4 year experience, 5 year experience. The primary advantage of the Criteria API is that it is intuitively designed to manipulate data without using any hard-coded SQL statements. What is Hibernate Query Language (HQL)? Hibernate offers a query language that embodies a very powerful and flexible mechanism to query, store, update, and retrieve objects from a database. Instead of getting your results back as a Object[], you can get your results back as a Tuple. A batch application is nothing more than a program whose goal is to make the processing of large amounts of data, on a scheduled basis. Query) A single-thread object used to perform query on underlying database. CriteriaSpecification. A single instance of Query is used to define the query parameters related to query criteria and result sets. Ask Question Hibernate Criteria Query for multiple columns with IN clause and a subselect. If you can't wait or patch, you could develop a OraclePage extending hibernate page where you use Native SQL Queries, in particular you will have to insert Oracle's proprietary rownum modifiers into the generated SQL: by using Cached RowSet and cachedRowset. Hibernate detects that the @Id annotation is on a field and assumes that it should access properties of an object directly through fields at runtime. Note : Since Hibernate 5, the Criteria API has been deprecated and hence CriteriaQuery API is used as its replacement to allow us to associate a criteria/condition with a query when accessing the database. You may also express queries in the native SQL dialect of your database. Chapter 23 Using the Criteria API to Create Queries. Using session methods(get() and load() methods) -limited control to accessing data Using HQL - Slightly more control using where clause and other clauses. Hibernate criteria query automatically tuned the query for best performance. The Hibernate Criteria Query Language (HCQL) is used to fetch the records based on the specific criteria. Some of the more complex examples use Access date functions to extract different parts of a date to help you get just the results you want. It means one can include association. Home » Hibernate » HQL - Hibernate Query Language - Example Tutorial HQL or Hibernate Query Language is the object-oriented query language of Hibernate Framework. The CriteriaBuilder javax. It is like using alias names. Until now the result set column names are assumed to be the same as the column names specified in the mapping document. hibernate criteria Distinct. After you get a Projection object, add it to your Criteria object with the setProjection() method. You have to import below reference: import org. Hibernate Logging Zip. Hibernate SQL Query addScalar. If an item matches all the criteria you enter, it appears in the query results. Since version 3 onwards one can actually drop the de facto part as Hibernate 3 implements Java Persistency API with some optional packages. Conclusion. Criteria queries let you dynamically build up query criteria by adding filters and other criteria. If I'm not able to get results with just 2 columns in a really simple query, I can't imagine what will happen when I have joins and restrictions and everything. HQL is extremely simple to learn and use, and the code is always self-explanatory. How to configure Second level cache in hibernate?5. We can clearly see that there is an issue in the way literals might be handled by Hibernate when executing a Criteria API query. This is very handy when we want to execute database specific queries that are not supported by Hibernate API. Dear All, First i just give you a brief introduction about Quickviewer and SAP Query. You may also express queries in the native SQL dialect of your database. Each of these approaches is described in following. The Projections class provides several static factory methods for obtaining Projection instances. Since Hibernate 5. On this managed entity, you can then call your setter methods to change entity attributes. This package defines the criteria query compiler and loader A one-to-one association that maps to specific. However, there is a special kind of query where you can optimize the cache invalidation algorithm: lookups by a constant natural key. Instead, hibernate itself will prepare a tuned query. Lets first write a java class to update a row to the database. Hibernate - Query Language. issue with sql query conversion to hibernate query Hi I have like month wise table jan, feb. createCriteria is used to create a new Criteria instance for a given class or the superclass of a class. In our Hibernate Tutorials, so far, we have executed CURD operations on a single object at a time. Hibernate will update all the unmodified columns. So you don't need to write database specific queries. SQL (/ ˌ ɛ s ˌ k juː ˈ ɛ l / S-Q-L, / ˈ s iː k w əl / "sequel"; Structured Query Language) is a domain-specific language used in programming and designed for managing data held in a relational database management system (RDBMS), or for stream processing in a relational data stream management system (RDSMS). You can filter by view and/or database. This approach lets you specify constraints dynamically without direct string manipulations, but it doesn't lose much of the flexibility or power of HQL. The problem is that there is a dynamic path segment in the url and I need to map my filter only to URLs ending with a specific path. The procedure returns a row for each field of each view. Hibernate 4 Tutorial; More tutorials of Hibernate 4; Hibernate 3. Criteria Queries can only be used to fetch the records only as they do not support updates or deletes to the database. x and your profiling tool shows lots of CPU cycles being burnt in ProjectionList, you might want to give this approach a try. Hibernate Named Queries can be defined in Hibernate mapping files using query or sql-query element or through the use of JPA annotations @NamedQuery and @NamedNativeQuery. Afterwards, you can use the entity in the same way as any other entity. Hibernate Performance Tuning Tips Top 10 Hibernate Performance Tuning Recommendations: (1) Avoid join duplicates (AKA cartesian products) due to joins along two or more parallel to-many associations; use Exists-subqueries, multiple queries or fetch="subselect" (see (2)) instead - whatever is most appropriate in the specific situation. Note : Since Hibernate 5, the Criteria API has been deprecated and hence CriteriaQuery API is used as its replacement to allow us to associate a criteria/condition with a query when accessing the database. Since Hibernate 5. The point is I need different columns each query. Query : A Query is a Object Orientation representation of Hibernate query. Here are some common date criteria examples, ranging from simple date filters to more complex date range calculations. persistence. This package defines the criteria query compiler and loader A one-to-one association that maps to specific. Combined with the graphical design tool iReport, for example, you get a complete Java Open Source reporting solution. Hibernate also supports native SQL statements. The reason it updates all is that hibernate has no way of knowing if any of the fields have changed (it would need to do a select first to get the data, which is less efficient), so it updates all. How hibernate identifies which. everyoneloves__bot-mid-leaderboard:empty{. JPA Performance, Don't Ignore the Database are queries accessing too many rows or columns? Is the database query analyzing more rows than it needs? you get a faster query response time for. Criteria is a another technique of data retrieval apart from HQL and native SQL queries. HQL queries are translated by Hibernate into conventional SQL queries which in turns perform action on database. How to use joins between two unassociated tables in Criteria forum. The criteria of using a simple view for insert statement are. Learn about Identity, Sequence, and Table in Hibernate. Today we will move forward and integrate Spring MVC and Hibernate frameworks in a web application CRUD example. Query by Example. One item I came across recently was trying to order a Hibernate Criteria Query by two columns of equal importance. If your native query returns all columns mapped by your entity and if their names are identical to the ones used in the entity mapping, you just need to provide your entity class as the 2nd parameter to the createNativeQuery method. Notice that the DTYPE column is used to filter only the Post entities. Hibernate is an object-relational mapping (ORM) library for the Java language, providing a framework for mapping an object-oriented domain model to a traditional relational database. Below class shows different usages of Hibernate Criteria API, most of these are replacements of examples in HQL tutorial. By using the -element in a mapping you tell hibernate that you want to get a list with indexed containers. They are type-safe in terms of using interfaces and classes to represent various structural parts of a query such as the query itself, or the select clause, or an order-by, etc. com In the Hibernate Criteria API, there is no need to create a query. Hibernate Tools provide a code generation launch configuration which can take the configured Hibernate model and use for various code generation tasks. This tutorial will show how to select columns other than entities. Hibernate has to perform an additional query to retrieve the generated values from the database. On this managed entity, you can then call your setter methods to change entity attributes. Suppose you have two tables Club and Team. Criteria is a another technique of data retrieval apart from HQL and native SQL queries. LAST)); Here is the underlying SQL query - with the is null then 1 else 0 clause:. Consider the following example:. getSingleList();. Update of /cvsroot/hibernate/HibernateExt In directory sc8-pr-cvs1:/tmp/cvs-serv3798 Modified Files: build. The ability to retrieve managed entity objects is a major advantage of JPQL. This fails with exception OutOfMemoryException after around 50000 rows on most systems. Executing the Query to get particular type of collection of records in a List. Though Hibernate Query Language can also be used to perform the same task but using queries makes maintenance difficult since the queries need to be written in string format while using Criteria involves clas. Basic queries use the q query string parameter which supports the Lucene query parser syntax and hence filters on specific fields (e. Query an Array with Compound Filter Conditions on the Array Elements¶. NET technologies. This is because hibernate fetches all columns in every Select statement in order to fully populate the return object. Entity selection. How to implement Inheritance in hibernate?2. Both JPA and Hibernate provide a lot of flexibility when it comes to transforming the result set of a given JPQ query, be it JPQL, Criteria API or native SQL query. Criteria queries let you dynamically build up query criteria by adding filters and other criteria. 0 and provides the detailed features of the Hibernate 3. com, we won't encourage audio ads, popups or any other annoyances at any point, hope you support us :-) Thank you. 1 Table of Contents Preface. I consider the Criteria API the strongest query engine for NHibernate and if you sweeten it with some LINQ candy just to get compilation support you can get the most out of it. A fetching strategy is the strategy Hibernate will use for retrieving associated objects if the application needs to navigate the association. com, we won't encourage audio ads, popups or any other annoyances at any point, hope you support us :-) Thank you. The @Table annotation provides four attributes, allowing you to override the name of the table, its catalogue, and its schema, and enforce unique constraints on columns in the table. Hibernate Community Forums. What is ORM?. persistence. Criteria Queries can only be used to fetch the records only as they do not support updates or deletes to the database. difference between list() and iterate() hibernate hibernate list method list vs iterate query. How to return an entity with chosen columns using Criteria. This tutorial will show how to select columns other than entities. In this section, we will show you, how to use the Max() function. For two projects I = work on (at work and at home) I use a custom JDBC abstraction layer to run = custom searches, and Hibernate for most everything else. xml, as well as. You should really be thinking in terms of your model and storing an array of players (or whatever these things represent above), rather than storing arrays for each property of that specific model. April 14, 2005 Hibernate in 60 Minutes 21 [Ant Buildfile] Invokes XDoclet XDoclet ships with the Hibernate tasks Generates mapping files and hibernate. Thats y i was not able to get the result and i put the query. Criteria API uses entity names and properties not table names and table columns. For example the criterion, = "Chicago" shows all items that have the text Chicago. The web application uses the Hibernate framework as the persistence layer for retrieving and storing plain old Java objects (POJOs) to a relational database. Here is the complete code. Hibernate Query By Example and Projections. The reason it updates all is that hibernate has no way of knowing if any of the fields have changed (it would need to do a select first to get the data, which is less efficient), so it updates all. custMobile, b. HQL stands for Hibernate Query Language. In this tutorial of Criteria in Hibernate Example we will discuss about the Criteria API of hibernate it is using for fetching data from the database in the Hibernate. Select the range you need, and click Insert > PivotTable or Insert > PivotTable > PivotTable to open the Create PivotTable dialog box. We will learn to create various custom dynamic queries with multiple MongoDB operators to get started. HQL queries are translated by Hibernate into conventional SQL queries which in turns perform action on database. The Query interface allows applications to query the database and control how the query is executed. We can clearly see that there is an issue in the way literals might be handled by Hibernate when executing a Criteria API query. I am having following objects Entry,Queue,Task. list() method for fetching 6 records. There are three way to pulling data from the database in the Hibernate. Column names are mapped to fields to a domain/data/pojo object. Hi , I need to do order by a column of child table. You can filter by view and/or database. You will find a number of examples for different data types - numbers, dates, text, wildcard characters, non-blank cells and more. You may also express queries in the native SQL dialect of your database. com, we won't encourage audio ads, popups or any other annoyances at any point, hope you support us :-) Thank you. The Query interface allows applications to query the database and control how the query is executed. Usually, the application calls Hibernate. Hibernate Interview Questions. In case of Hibernate developer doesnt need to be an expert of writing complex queries as HQL simplifies query writing process while in case of JDBC, its job of developer to write and tune queries. NHibernate Implementation of BulkOperationCleanupAction. This banner text can have markup. int shift=0; int month = Convert. This Java Hibernate tutorial helps you implement a many-to-many association with additional fields in the join table. Support your customers before and after the sale with a collection of digital experience software that works together to grow the customer relationship. object_id from sys. Query) A single-thread object used to perform query on underlying database. x and your profiling tool shows lots of CPU cycles being burnt in ProjectionList, you might want to give this approach a try. I would like to hear your ideas / comments how to port following code to jOOQ. Using Hibernate in a Web Application. It also selects an effective way to perform a database manipulation task for an application. It generates the database independent queries. Hibernate detects that the @Id annotation is on a field and assumes that it should access properties of an object directly through fields at runtime. Before Hibernate, if database is changed for the project, we need to change the SQL query as well that leads to the maintenance problem. The class org. What’s the difference between JDBC & Hibernate? JDBC API’s are easy to use for small projects. What is Hibernate Query Language (HQL)? Hibernate offers a query language that embodies a very powerful and flexible mechanism to query, store, update, and retrieve objects from a database. Free Hibernate Notes | VirtualNuggets - Free download as PDF File (. However, there is a special kind of query where you can optimize the cache invalidation algorithm: lookups by a constant natural key. 1 Database: MySQL 4. The general approach is to create a Lucene query, either via the Lucene API (see Building a Lucene query using the Lucene API) or via the Hibernate Search query DSL (Building a Lucene query with the Hibernate Search query DSL), and then wrap this query into a org. How hibernate identifies which. It’s a Criteria based query language mainly used to fetch the records based on specific search criteria. A key benefit of using this class is that the programmer need not get involved in SLQ specific details. If an item matches all the criteria you enter, it appears in the query results. * Get one session from this session factory * Create HQL Query * Execute query to get list containing Java objects View All Answers Question # 23 What is Hibernate Query Language (HQL)? Answer:-Hibernate offers a query language that embodies a very powerful and flexible mechanism to query, store, update, and retrieve objects from a database. List collection2 = query. Projections in Hibernate's Criteria API allow you to modify the kind of results returned by a query. This language, the Hibernate query Language (HQL), is an object-oriented extension to SQL. What method adds criteria to a query? A: The method Session. save() method also returns the. Get one session from this session factory 4. April 14, 2005 Hibernate in 60 Minutes 21 [Ant Buildfile] Invokes XDoclet XDoclet ships with the Hibernate tasks Generates mapping files and hibernate. Before Hibernate, If database is changed for the project, we need to change the SQL query as well that leads to the maintenance problem. Hibernate Criteria API is a more object oriented and elegant alternative to Hibernate Query Language (HQL). It generates the database independent queries. profession, b. It might run inside a servlet engine—where you could use it with web application framework like Struts, Web-Work or Tapestry—or inside an EJB container, a Swing client, a lightweight container, or even a JMX server like JBoss. Access Query Criteria for Specific Date Range To select records within a specific date range, with two dates with the AND operator, in the query criteria. Update of /cvsroot/hibernate/Hibernate2 In directory sc8-pr-cvs1:/tmp/cvs-serv5900 Modified Files: Tag: v21branch changelog. Fetch strategies may be declared in the O/R mapping metadata, or over-ridden by a particular HQL or Criteria query. Hot Network Questions. A full program using Query. Hello All, I'm trying to run this query using hibernate The query: select a. jpa criteria select specific columns (1) Yes, Criteria API does have have construct similar to JPQL constructor expressions. These source code samples are taken from different open source projects. The specific Field [C/Card Expire] is formatted with a Data Type of 'Text' and has an input mask of '00/00', so all expiry dates are set out for example as 10/13 (which represents October 2013). My sample query. Hibernate Query Language is same as SQL (Structured Query Language) but instead of tables it deals with classes and instead of columns it deals with properties or class attributes. Executing the Query to get particular type of collection of records in a List. Call a named query. Hibernate Community Forums. Notice that the DTYPE column is used to filter only the Post entities. Take a look at some examples of query criteria to help you get started in creating your own query criteria. If you use Criteria Quires in Hibernate then hibernate automatically tuned your query and return best result with performance. The second approach to pass the Hibernate Type associated with a given JPA bind parameter is to cast the JPA Query or TypedQuery to a Hibernate-specific org. Calculate average in a column based on same value in another column with. Suppose you have two tables Club and Team. HQL queries are translated by Hibernate into conventional SQL queries which in turns perform action on database. Its purpose is to relieve the developer from a significant amount of relational data persistence-related programming tasks. Query an Array with Compound Filter Conditions on the Array Elements¶. Using Like Query with wildcard in different combinations, we can match our keyword with the pattern of the data present in columns. I create criteria like this (Columns is class from which I retrive names of columns):. Define a simple named query The following code snippet shows how to create a simple named query which selects all authors who have written a book with a title that contains a specific String. custMobile, b. As you can see, Hibernate not only selects the database columns mapped by the Department entity but also selects all columns mapped by the Employee entity within the same query. The relational model is shown below in Figure 25. Luckily, in addition to JPQL support, Hibernate features a criteria query API which you can leverage for the cases it is needed and stick to the standard API elsewhere in the application. Hibernate Criteria Query; Hibernate 4 Tutorials. One time it will be value0, value1, second time it would be value0, value2. Passing a comma separated list of values to an SQL query is all very well, but you can't just use. Avoid using anything Hibernate-specific if you can. However we would still get the data in form of Object array. Right now, Hibernate does not know how to distinguish different entity types, because we did not specify what the entity_type column could contain. HQL queries are translated by Hibernate into conventional SQL queries which in turns perform action on database. Hi , I need to do order by a column of child table. Query Several Columns With Hibernate August 14, 2009 Even though Hibernate is called an object-relational mapper it's easy to select only a few properties instead of the whole mapped object. Hibernate is a pure Java object-relational mapping (ORM) and persistence framework that allows you to map plain old Java objects to relational database tables using (XML) configuration files. Hibernate framework translate HQL queries into database specific queries to perform action. So the operation of SQL objects are data tables and columns and other data objects, and HQL operation object is a class, instance, attribute. I am using hibernate 3. This can be problematic for SQL queries which join multiple tables, since the same column names may appear in more than one table. I create criteria like this (Columns is class from which I retrive names of columns):. xml, as well as. Execute native query through Hibernate in DB2 , result set is null and ending up with No Dialect mapping for JDBC type 1111 Result Set one to many mapping. thanks for pointing out the pt about objects. The Query interface allows applications to query the database and control how the query is executed. Query to get the required functionality from the Hibernate API. The Criteria API allows us to build up a criteria query object programmatically, where we can apply different kind of filtration rules and logical conditions. What is the Hibernate Query Language (HQL)? A Hibernate specific query language that embodies a powerful and flexible way to query, store, update, and retrieve objects from a database. Query to select single or several columns with Hibernate Criteria instead of whole table Here i am discuss Projection in hibernate when you want to retrieve columns instead of whole table Criteria API :-Criteria is a simplified API for retrieving entities by composing Criterion objects. Hibernate provide option to execute native SQL queries through the use of SQLQuery object. In this page we will learn in detail how to use hibernate @Filter and @FilterJoinTable annotation. The below screenshot will show you the tables inside that database. For example, get an object and try modify its value and update it again. As you can see, I first call the getEntityGraph(String name) method on the EntityManager to get an instance of the entity graph. Hibernate Criteria Query; Hibernate 4 Tutorials. Hibernate is one of the most widely used ORM tool for Java applications. I have tried searching for ways to change how SQL is comparing the columns. columns c where c. Don’t need Query tuning in case of Hibernate. I tried with the following code, but it's not giving me the desired result. Hibernate - Query Language. This hibernate criteria is fetching 6 records from table. Найти  Postgres cast uuid to string. Use With Spring Framework. As we learn the …. However we would still get the data in form of Object array. Query and Criteria Interface. HQL queries are translated by Hibernate into conventional SQL queries, which in turns perform action on database. However, this approach doesn't remove associated instances. Hibernate HQL Query Using Select and Iterate Two Tables All Column Values I have prepared the following Hibernate HQL query. com, we won't encourage audio ads, popups or any other annoyances at any point, hope you support us :-) Thank you. In Hibernate, the Criteria API helps us build criteria query objects dynamically. Query to select single or several columns with Hibernate Criteria instead of whole table Here i am discuss Projection in hibernate when you want to retrieve columns instead of whole table Criteria API :-Criteria is a simplified API for retrieving entities by composing Criterion objects. Hibernate Query Language (HQL) is an object-oriented query language, similar to SQL, but instead of operating on tables and columns, HQL works with persistent objects and their properties. Instead, hibernate itself will prepare a tuned query. 0 ; Hibernate Architecture In this lesson you will learn the architecture of Hibernate. We will write two program, one is to save Cart and see that Item and Cart_Items information is also getting saved. Hibernate has a powerful query by example. Hibernate SQL Query addScalar. Wrap the query in a org. HQL syntax is quite similar to SQL syntax but it performs operations on objects and properties of persistent classes instead of tables and columns. You can use arbitrary logic in a join. * @deprecated {@link #getLimitHandler()} should be overridden. When using Hibernate Shards you will find yourself making typical Hibernate Core API calls most of them time. initialize() for each collection that will be needed in the web tier (this call must occur before the session is closed) or retrieves the collection eagerly using a Hibernate query with a FETCH clause or a FetchMode. 2) Don't need to learn query tuning. When I do query I know which columns I need. Ask Question Hibernate Criteria Query for multiple columns with IN clause and a subselect. CriteriaBuilder JPA interface Used to construct criteria queries, compound selections, expressions, predicates, orderings. HQL queries are database independent queries because HQL queries internally converted into database specific SQL queries using Dialect class mentioned in hibernate. The criteria query API lets you build nested, structured query expressions in Java, providing a compile. JasperReports is a powerful and flexible Open Source reporting tool. Hibernate: getById query [Solved] (Object Relational Mapping forum at Coderanch). If I'm not able to get results with just 2 columns in a really simple query, I can't imagine what will happen when I have joins and restrictions and everything. CriteriaQuery API allows you to specify the criteria or a condition that you want to apply on a class to access its particular object or a collection of objects. Projections functionality. example on HQL select query, hibernate query language select query, tutorial on hibernate select query, select query of hibernate Please consider disabling your ad blocker for Java4s. Query • Main class used for building and. Value);// should be in the format of Jan, Feb, Mar, Apr, etc. Query below finds all tables that have 'ProductID' column. Below is a simplified version of the select, there are more columns in the actual select but the behavior is the same if I only select 1 column. We have learned about HQL in previous articles, Now lets talk about Hibernate Criteria Query Language (HCQL) in this article. Home » Hibernate » HQL - Hibernate Query Language - Example Tutorial HQL or Hibernate Query Language is the object-oriented query language of Hibernate Framework. It helps largely in code cleanup because these HQL statements are no longer scattered in whole code. • Querying Data – Hibernate returns data back in standard Java Data Collections such as Lists and Sets – There are several ways to query data • Criteria API • Query By Example • Hibernate Query Language • Native SQL 30. Hibernate also supports native SQL statements. Hibernate's goal is to relieve the developer from 95 percent of common data persistence related programming tasks. It also provides a clean migration path from a direct SQL/JDBC based application to Hibernate. From JPA interface Represents a bound type, usually an entity that appears in the from clause, but may also be an embeddable belonging to an entity in the from clause. What is Hibernate? Q. Query Creation from Method Name. 3) Database Independent query: HQL (Hibernate Query Language) is the object-oriented version of SQL. Hibernate Query language: Hibernate Query Language (HQL) is an object-oriented query language, it is similar to SQL, but instead of operating on tables and columns, HQL works with persistent objects and their properties. What are the disadvantages of Query and Second level cache?6. Besides using formula, you also can sum the values based on criteria in another column by inserting a Pivot table. setReadOnly(), Criteria. Dear All, First i just give you a brief introduction about Quickviewer and SAP Query. ToInt32( ddmonth.