转换①(显式):TZ-IN1转TZ-IN2,这个转换由MySQL Connect/J完成(参考com.mysql.cj.ClientPreparedQueryBindings#setTimestamp(),限于篇幅,此处不再展开分析)。 转换②(隐式):TZ-IN2转无时区,MySQL内部存储时间类型的字段时或者忽略时区(DateTime类型)或者使用UTC(Timestamp类型),参考MySQL官宣的时间类型部分。 转...
$conn2 = mysql_connect($servername, $username, $password); mysql_select_db('test2', $conn2);//这一句会报错:Table 'test2.test1' doesn't exist,因为$conn2的连接参数与$conn1相同,所以$conn2并没有打开新连接,而是返回$conn1,所以执行下面这一句代码的时候,数据库已经被切换到test2。如果不想报错...
其中的一个参数CLIENT_MULTI_RESULTS不明白是什么意思,google之,在mysql的官方主页上关于mysql提供的c接口的文档 (http://dev.mysql.com/doc/refman/5.0/en/mysql-real-connect.html)里找到了这个参数 和其他一些参数,我大概翻译了一下描述,如下: 下面有对于CLIENT_MULTI_STATEMENTS的说明: If you enableCLIENT_MUL...
com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSource As a key/value pair in the java.util.Properties instance passed to DriverManager.getConnection() or Driver.connect() As a JDBC URL parameter in the URL given to java.sql.DriverManager.getConnection(), java.sql.Driver.connect() or ...
http://bugs.mysql.com/bug.php?id=87848marked as duplicate of this one. [2 Oct 2017 7:36] Alexander Soklakov Hi Mark, You need to use c/J 5.1.44 to connect to MySQL 8.0.3. There were two incompatible changes in this server version: 1. Query cache removal. The fix was done in ...
Description:My linkbench client uses connector/j 5.1.38 and this works with MySQL 5.6 and 5.7. It does not work with MySQL 8 as attempts to create a connection get an exception. My client makes a connection here:https://github.com/mdcallag/linkbench/blob/master/src/main/java/com/facebook...
MariaDB java connector is a JDBC 4.2 compatible driver, used to connect applications developed in Java to MariaDB and MySQL databases. MariaDB Connector/J is distributed under the LGPL license version 2.1 or later (LGPL-2.1-or-later)
MariaDB java connector is a JDBC 4.2 compatible driver, used to connect applications developed in Java to MariaDB and MySQL databases. MariaDB Connector/J is distributed under the LGPL license version 2.1 or later (LGPL-2.1-or-later) Tracker link https://jira.mariadb.org/projects/CONJ/issues...
I use the kettle to connect the mysql database,the version of the kettle is 7.0 and the version of the mysql is 8.0.12. I have put the mysql-connector-java-8.0.
Example 7.1 Connector/J: Obtaining a connection from the DriverManager If you have not already done so, please review the portion of Section 7.1, “Connecting to MySQL Using the JDBC DriverManager Interface” above before working with the example below. ...