Table of Contents
What is JDBC PreparedStatement?
JDBCJava 8MySQL. The PreparedStatement interface extends the Statement interface it represents a precompiled SQL statement which can be executed multiple times. This accepts parameterized SQL quires and you can pass 0 or more parameters to this query.
What is the use of PreparedStatement explain it with one example?
The PreparedStatement interface is a subinterface of Statement. It is used to execute parameterized query….Methods of PreparedStatement interface.
| Method | Description |
|---|---|
| public int executeUpdate() | executes the query. It is used for create, drop, insert, update, delete etc. |
Can we use PreparedStatement for select query in Java?
To retrieve data from a table using a SELECT statement with parameter markers, you use the PreparedStatement. executeQuery method.
What is the difference between Statement PreparedStatement and CallableStatement?
It is used when you want to use the database stored procedures. CallableStatement can accept runtime input parameters….Difference between CallableStatement and PreparedStatement :
| CallableStatement | PreparedStatement |
|---|---|
| Performance is very high. | Performance is better than Statement. |
What is callable statement in JDBC?
The CallableStatement interface provides methods to execute the stored procedures. Since the JDBC API provides a stored procedure SQL escape syntax, you can call stored procedures of all RDBMS in single standard way.
What Rowsets are available in JDBC?
A RowSet is an object that encapsulates a set of rows from either java Database Connectivity (JDBC) result sets or tabular data sources….The JSR-114 specification includes implementation details for five types of RowSet:
- CachedRowSet.
- JDBCRowSet.
- WebRowSet.
- FilteredRowSet.
- JoinRowSet.
What is the use of setAutoCommit ()?
In this scenario you can use the setAutoCommit() method. This method belongs to the Connection interface and, it accepts a boolean value. If you pass true to this method it turns on the auto-commit feature of the database and, if you pass false to this method it turns off the auto-commit feature of the database.
What is CachedRowSet in Java?
A CachedRowSet object is a disconnected rowset, which means that it makes use of a connection to its data source only briefly. It connects to its data source while it is reading data to populate itself with rows and again while it is propagating changes back to its underlying data source.
Is delete Auto-commit?
Drop and Truncate both are DDL(Data Definition Language). Drop {Delete or drops} the table with it’s structure. It is autocommit statement.
Which statements about JDBC are true?
The Statement Objects. Statement stmt = null; try { stmt = conn.createStatement ( ); .
What are the three types of JDBC statements?
Statement. The Statement interface represents the static SQL statement.
What is a prepared statement?
A prepared statement takes the form of a pre-compiled template into which constant values are substituted during each execution, and typically use SQL DML statements such as INSERT, SELECT, or UPDATE . A common workflow for prepared statements is: Prepare: The application creates the statement template and sends it to the DBMS.
How to execute a procedure with JDBC?
Register the driver: class using the registerDriver () method of the DriverManager class.