Return Auto Generated Key Query Jdbc Mysql Java
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- Return Auto Generated Key Query Jdbc Mysql Java Server
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Description: Hi, I am using MySQL server 5.1.36 and JDBC driver (mysql connector/J) 5.1.10. The primary key of the table is BIGINT unsigned type. According to documentation, if it is unsigned, java.math.BigInteger shall be used. I use a prepared statement for insertion with option to return the ID as the resultset of the prepared statement.
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The Microsoft JDBC Driver for SQL Server supports the optional JDBC 3.0 APIs to retrieve automatically generated row identifiers. The main value of this feature is to provide a way to make IDENTITY values available to an application that is updating a database table without a requiring a query and a second round-trip to the server. When we are inserting a record into the database table and the primary key is an auto-increment or auto-generated key, then the insert query will generate it dynamically. The below example shows how to get this key after insert statement. After perfoming executeUpdate method on PreparedStatement, call getGeneratedKeys method on PreparedStatement.
If you insert records into a table which contains auto-incremented column, using a Statement or, PreparedStatement objects.
You can retrieve the values of that particular column, generated by them object using the getGeneratedKeys() method.
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Example
Let us create a table with name sales in MySQL database, with one of the columns as auto-incremented, using CREATE statement as shown below −
Retrieving auto-generated values (PreparedStatement object)
Return Auto Generated Key Query Jdbc Mysql Java Server
Following JDBC program inserts 3 records into the Sales table (created above) using PreparedStatement, retrieves and displays the auto-incremented values generated by it.
Jdbc Mysql Connection
Example
Output
Jdbc With Mysql
Retrieving auto-generated values (Statement object)
Return Auto Generated Key Query Jdbc Mysql Java Download
Following JDBC program inserts 3 records into the Sales table (created above) using Statement, retrieves and displays the auto-incremented values generated by it.