Jdbc Batch Insert Generated Keys Mysql

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I need inserted primary keys after batch job. I have used getGeneratedKeys after executeBatch which is not working. GetGeneratedKeys to get inserted primary key after executeBatch statement return empty result se (JDBC and Relational Databases forum at Coderanch). I need inserted primary keys after batch job. I have used getGeneratedKeys after executeBatch which is not working. GetGeneratedKeys to get inserted primary key after executeBatch statement return empty result se (JDBC and Relational Databases forum at Coderanch). Description: When extended INSERT (insert with several tuples in one query) is used with ON DUPLICATE KEY UPDATE clause and there're unique key conflict the Connector/J's Statement will return incorrect list of generated identifiers that cannot be matched with tuples from INSERT query at all (for more details see 'How to repeat' section). The only workaround is to use separate query to retrive. Dec 25, 2019 Support multiple JDBC driver class names (MySQL introduced a new driver class name with its 6.x connector) JDBC-172. Allow with-db-connection and with-db-metadata to nest JDBC-171. Release 0.7.7 on 2018-06-23. Support:as-arrays?,:result-set-fn, and:row-fn in operations that return generated keys as a result set (execute!, insert!, and insert. Spring JDBC FAQ: How do I retrieve the auto-generated database key for a serial field (also known as an autoincrement field in MySQL) after I perform a SQL INSERT using Spring JDBC? (I'm not phrasing that well, but by this question I mean the value of the primary key for the record I just inserted. Now, to insert records into this table using PreparedStatement object and, to retrieve the auto-incremented values generated by it − Register the Driver class of the desired database using the registerDriver method of the DriverManager class or, the forName method of the class named Class.

Jdbc Batch Insert Generated Keys Mysql Pdf

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JDBCObject Oriented ProgrammingProgramming

While creating a table, in certain scenarios, we need values to column such as ID, to be generated/incremented automatically. Various databases support this feature in different ways.

In MySQL database you can declare a column auto increment using the following syntax.

While inserting records in a table there is no need to insert value under the auto-incremented column. These will be generated automatically.

For example, in a table if we have a column with name ID and data type INT, which is auto-incremented and, if we already have 6 records in that table. When you insert the next record using the INSERT statement the ID value of the new record will be 7 and the ID value of its next record will be 8.

(You can specify the initial value and interval for these auto-incremented columns).

Retrieving the auto-incremented values

If you insert records into a table which contains auto-incremented column, using a PreparedStatement object.

Jdbc Batch Insert Generated Keys Mysql Server

You can retrieve the values of that particular column, generated by the current PreparedStatement object using the getGeneratedKeys() method.

Example

Spring Jdbc Batch Insert

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 −

Now, to insert records into this table using PreparedStatement object and, to retrieve the auto-incremented values generated by it −

  • Register the Driver class of the desired database using the registerDriver() method of the DriverManager class or, the forName() method of the class named Class.
  • Create a Connection object by passing the URL of the database, user-name and password of a user in the database (in string format) as parameters to the getConnection() method of the DriverManager class.
  • Create a PreparedStatement object using the prepareStatement() method of the connection interface.

To this method pass the INSERT statement with bind variables in string format as one parameter and, Statement.RETURN_GENERATED_KEYS as other parameter as −

  • Set values of each record to the bind variables using the setXXX() methods and, add it to batch.

Jdbc Preparedstatement Batch Insert

Keys

After adding values of all the records to the batch, execute the batch using the executeBatch() method.

  • Finally, get the auto-incremented keys generated by this PreparedStatement object using the getGeneratedKeys() method.

Following JDBC program inserts 5 records into the Sales table (created above) using PreparedStatement, retrieves and displays the auto-incremented values generated by it.

Example

Output

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JDBCObject Oriented ProgrammingProgramming

If you insert records into a table which contains auto-incremented column, using a Statement or, PreparedStatement Hekate stuck on generated keys. 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 −

Jdbc Batch Insert

Retrieving auto-generated values (PreparedStatement object)

Following JDBC program inserts 3 records into the Sales table (created above) using PreparedStatement, retrieves and displays the auto-incremented values generated by it.

Example

Output

Retrieving auto-generated values (Statement object)

Following JDBC program inserts 3 records into the Sales table (created above) using Statement, retrieves and displays the auto-incremented values generated by it.

Output