How do I create a custom query in Liferay?
It’s easy to do by following these steps: Specify your custom SQL. Implement your finder method. Access your finder method from your service….Next, using the Guestbook application as an example, you’ll learn how to accomplish these steps.
- Step 1: Specify Your Custom SQL.
- Step 2: Implement Your Finder Method.
How do I create a dynamic query in Liferay?
Dynamic Query
- Create a custom -FinderImpl class and define a findBy- finder method in this class. Run Service Builder to generate the required interfaces and utility classes.
- Implement your finder method using Liferay’s Dynamic Query API.
- Add a method to your -LocalServiceImpl class that invokes your finder method.
What are the first step when you create a custom query using SQL?
Related Topics
- Step 1: Specify Your Custom SQL.
- Step 2: Implement Your Finder Method.
- Step 3: Access Your Finder Method from Your Service.
How do I create a SQL query?
How to Create a SQL Statement
- Start your query with the select statement. select [all | distinct]
- Add field names you want to display. field1 [,field2, 3, 4, etc.]
- Add your statement clause(s) or selection criteria. Required:
- Review your select statement. Here’s a sample statement:
Which methods are used to create query?
The two ways to create queries are Navigation queries and keyword search queries.
What are the 2 ways to create a query?
You can create a select query by using the Query Wizard or by working in Design view.
What are different types of query?
It is commonly accepted that there are three different types of search queries:
- Navigational search queries.
- Informational search queries.
- Transactional search queries.
What are the 4 basic query types in databases?
Microsoft Access Query Types
- Select, Action, Parameter and Aggregate: Queries are very useful tools when it comes to databases and they are often called by the user through a form.
- Select Query.
- Action Query.
- Parameter Query.
- Aggregate Query.
How do you Create a SQL query?
How do you write a query for a database?
Syntax: CREATE DATABASE database_name; database_name: name of the database. Example Query: This query will create a new database in SQL and name the database as my_database.