If you are using a Community release of MySQL Connector/J 5.1, see the MySQL Connector/J 5.1 Community License Information User Manual for licensing information, including licensing information relating to third-party software that may be included in this Community release. MySQL Connector/J 5.1 is a JDBC Type 4 driver that is compatible with the JDBC 3.0, JDBC 4.0, JDBC 4.1 and JDBC 4.2 specifications. The Type 4 designation means that the driver is a pure Java implementation of the MySQL protocol and does not rely on the MySQL client libraries.
MySQL Connector J is a Shareware software in the category Miscellaneous developed by Oracle Corporation. It was checked for updates 754 times by the users of our client application UpdateStar during the last month. The latest version of MySQL Connector J. MySQL Stored Procedure Programming: Building High-Performance Web Applications in MySQL (2006) by Guy Harrison, Steven Feuerstein MySQL Crash Course (2005) by Ben Forta A Guide to MySQL (Available Titles Skills Assessment Manager (SAM) - Office 2010) (2005) by Philip J.
Table of Contents
- What is MySQL Connector/J?
- Release Notes
- Known Issues
![Connector/J Connector/J](/uploads/1/1/9/8/119876205/717302028.png)
MySQL Connector/J is an implementation of Sun's JDBC 3.0 API for the MySQL relational database server. It strives to conform as much as possible to the JDBC API as specified by JavaSoft. It is known to work with many third-party products, including:
MySQL Connector/J is the official JDBC driver for MySQL. MySQL Connector/J 8.0 is compatible with all MySQL versions starting with MySQL 5.5. Additionally, MySQL Connector/J 8.0 supports the new X DevAPI for development with MySQL Server 8.0.
Application Servers
Object Relational Mapping Tools
Development Environments
Implementation Notes (By java.sql and javax.sql Interface/Class)
MySQL Connector/J passes all of the tests in Sun's JDBC compliance testsuite except for tests requiring stored procedures (which MySQL does not have at this time). However, in many places the JDBC specification is vague about how certain functionality should be implemented, or the specification allows leeway in implementation.
This section gives details on a interface-by-interface level about how certain implementation decisions may affect how you use MySQL Connector/J.
- The Blob implementation does not allow in-place modification (they are 'copies', as reported by the DatabaseMetaData.locatorsUpdateCopies() method). Because of this, you should use the corresponding PreparedStatement.setBlob() or ResultSet.updateBlob() (in the case of updatable result sets) methods to save changes back to the database.Starting with Connector/J version 3.1.0, you can emulate Blobs with locators by adding the property 'emulateLocators=true' to your JDBC URL. You must then use a column alias with the value of the column set to the actual name of the Blob column in the SELECT that you write to retrieve the Blob. The SELECT must also reference only one table, the table must have a primary key, and the SELECT must cover all columns that make up the primary key. The driver will then delay loading the actual Blob data until you retrieve the Blob and call retrieval methods (getInputStream(), getBytes(), etc) on it.
- ClobThe Clob implementation does not allow in-place modification (they are 'copies', as reported by the DatabaseMetaData.locatorsUpdateCopies() method). Because of this, you should use the PreparedStatement.setClob() method to save changes back to the database. The JDBC API does not have a ResultSet.updateClob() method.
- ConnectionUnlike older versions of MM.MySQL the 'isClosed()' method does not 'ping' the server to determine if it is alive. In accordance with the JDBC specification, it only returns true if 'closed()' has been called on the connection. If you need to determine if the connection is still valid, you should issue a simple query, such as 'SELECT 1'. The driver will throw an exception if the connection is no longer valid.
- DatabaseMetaDataForeign Key information (getImported/ExportedKeys() and getCrossReference()) is only available from 'InnoDB'-type tables. Dr web chrome. However, the driver uses 'SHOW CREATE TABLE' to retrieve this information, so when other table types support foreign keys, the driver will transparently support them as well.
- Driver
- PreparedStatementPreparedStatements are implemented by the driver, as MySQL does not have a prepared statement feature. Because of this, the driver does not implement getParameterMetaData() or getMetaData() as it would require the driver to have a complete SQL parser in the client.Starting with version 3.1.0 MySQL Connector/J, server-side prepared statements are used when the server supports them.
- ResultSetBy default, ResultSets are completely retrieved and stored in memory. In most cases this is the most efficient way to operate, and due to the design of the MySQL network protocol is easier to implement. If you are working with ResultSets that have a large number of rows or large values, and can not allocate heap space in your JVM for the memory required, you can tell the driver to 'stream' the results back one row at-a-time.To enable this functionality, you need to create a Statement instance in the following manner:The combination of a forward-only, read-only result set, with a fetch size of Integer.MIN_VALUE serves as a signal to the driver to 'stream' result sets row-by-row. After this any result sets created with the statement will be retrieved row-by-row.There are some caveats with this approach. You will have to read all of the rows in the result set (or close it) before you can issue any other queries on the connection, or an exception will be thrown. Also, any tables referenced by the query that created the streaming result will be locked until all of the results have been read or the connection closed.
- ResultSetMetaDataThe 'isAutoIncrement()' method only works when using MySQL servers 4.0 and newer.
- Statement
The following methods in the JDBC API have not been implemented yet. They rely on functionality that at this time is not present in the MySQL server:
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- Connection.setSavePoint()
- Connection.prepareCall(String)
- Connection.releaseSavepoint(Savepoint)
- Connection.rollback(Savepoint)
- PreparedStatement.setArray(int, Array)
- PreparedStatement.getMetaData()
- PreparedStatement.setRef()
- PreparedStatement.getParameterMetaData()
- ResultSet.getArray(int)
- ResultSet.getArray(colName)
- ResultSet.getRef(int)
- ResultSet.getRef(String)
- ResultSet.rowDeleted()
- ResultSet.rowInserted()
- ResultSet.rowUpdated()
- ResultSet.updateArray(int, Array)
- ResultSet.updateArray(String, Array)
- ResultSet.updateRef(int, Ref)
- ResultSet.updateRef(String, Ref)
Mysql Connector/j Jar Download
MySQL provides standards-based drivers for JDBC, ODBC, and .Net enabling developers to build database applications in their language of choice. In addition, a native C library allows developers to embed MySQL directly into their applications.
Mysql Connector/j 8.0
Developed by MySQL | |
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ADO.NET Driver for MySQL (Connector/NET) | Download |
ODBC Driver for MySQL (Connector/ODBC) | Download |
JDBC Driver for MySQL (Connector/J) | Download |
Node.js Driver for MySQL (Connector/Node.js) | Download |
Python Driver for MySQL (Connector/Python) | Download |
C++ Driver for MySQL (Connector/C++) | Download |
C Driver for MySQL (Connector/C) | Download |
C API for MySQL (mysqlclient) | Download |
These drivers are developed and maintained by the MySQL Community.
Mysql Connector/j 8.0 Download
Developed by Community | |
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PHP Drivers for MySQL (mysqli, ext/mysqli, PDO_MYSQL, PHP_MYSQLND) | Download |
Perl Driver for MySQL (DBD::mysql) | Download |
Ruby Driver for MySQL (ruby-mysql) | Download |
C++ Wrapper for MySQL C API (MySQL++) | Download |