Which Method In Statement Should Be Used To Execute A DDL Command?

How can you execute a stored procedure in the database?

To execute a stored procedure Expand the database that you want, expand Programmability, and then expand Stored Procedures.

Right-click the user-defined stored procedure that you want and click Execute Stored Procedure..

Which method is best suited to execute DDL queries?

Statement is suitable for executing DDL commands – CREATE , DROP , ALTER , and TRUNCATE in Java JDBC.

What is difference between execute and executeUpdate?

execute method can run both select and insert/update statements. executeQuery method execute statements that returns a result set by fetching some data from the database. It executes only select statements. executeUpdate method execute sql statements that insert/update/delete data at the database.

What is the return type of executeUpdate ()?

The JDBC standard states that the executeUpdate method returns a row count or 0. … For an SQL statement that can have an update count, such as an INSERT, UPDATE, DELETE, or MERGE statement, the returned value is the number of affected rows.

Can we use DML statement in procedure?

You can directly enter SQL data manipulation language (DML) statements inside PL/SQL blocks, and you can use procedures, supplied by Oracle, to perform data definition language (DDL) statements.

What is executeUpdate?

Statement executeUpdate(String query) is used to execute Insert/Update/Delete (DML) statements or DDL statements that returns nothing. The output is int and equals to the row count for SQL Data Manipulation Language (DML) statements.

How do I run a DDL statement in PL SQL?

How to execute CREATE TABLE DDL using Execute Immediate in Oracle Database?Step 1: Prepare your DDL beforehand.Step 2: Run your DDL through PL/SQL program using Execute Immediate.First: Always enclose your SQL statement into a pair of Single Quotes.Second: Take care of Semi-colon.

What does executeQuery return?

executeQuery : Returns one ResultSet object. executeUpdate : Returns an integer representing the number of rows affected by the SQL statement. Use this method if you are using INSERT , DELETE , or UPDATE SQL statements.

What is the difference between executeQuery () and executeUpdate ()?

executeQuery() Vs executeUpdate() Vs execute() This method is use to execute the SQL statements which retrieve some data from database. This statement is used to execute SQL statements which update or modify database. … This method returns a ResultSet object which contains the result returned by query.

Which method needs to be used to execute a DML statement using JDBC?

executeupdate() is used to perform as Data manipulation language, it is used to modify stored data but not the schema or database objects. Manipulation takes place in form of persistent database objects, e.g., tables or stored procedures, via the SQL schema statements,rather than the data stored within them.

Can we use DDL statements in stored procedure?

You can use only DDL COMMENT statements in a stored procedure. You cannot specify DML COMMENT statements, which are restricted to embedded SQL applications, to fetch the comments for database objects, columns of a table, and parameters. All variations of CREATE TABLE statement are valid.

Does PL SQL support Create command?

As it says in the documentation: Only dynamic SQL can execute the following types of statements within PL/SQL program units: Data definition language (DDL) statements such as CREATE, DROP, GRANT, and REVOKE.

Which type of statement can execute parameterized queries?

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 DML DDL DCL in SQL?

These SQL commands are mainly categorized into four categories as: DDL – Data Definition Language. DQl – Data Query Language. DML – Data Manipulation Language. DCL – Data Control Language.

Which method in statement should be used to execute a DDL command in JDBC?

boolean execute(String SQL) : ……. Use this method to execute SQL DDL statements or when you need to use truly dynamic SQL. While the Jdbc documentation recommends the use of int executeUpdate(String sql) for executing DDL statements.

Which method is preferred for executing DML queries?

We must prefer PreparedStatement, as it is suitable for executing DML commands – SELECT, INSERT, UPDATE and DELETE. So, in this tutorial we learned how to Execute INSERT query(DML command) using java. sql. Statement’s executeUpdate method in java.

What is the return type of execute () method?

Since this is a SELECT statement, the execute( ) method returns a boolean true to indicate that a result set is available. You can then call the Statement object’s getResultSet( ) method to retrieve the ResultSet object that contains the data from the database.

How does a prepared statement work?

Prepared statements basically work like this: … The database parses, compiles, and performs query optimization on the SQL statement template, and stores the result without executing it. Execute: At a later time, the application binds the values to the parameters, and the database executes the statement.