Written By Posted Conditional IF with an OR statement Anthony Duncan April 14, 2010 09:19AM Re: Conditional IF with an OR statement Anthony Duncan April 14, 2010 11:02AM Sorry, you can't reply to this topic. It has been closed.
MySQL IF StatementSummary: in this tutorial, you will learn how to use MySQL IF statement to execute a block of SQL code based on conditions. The MySQL IF statement allows you to execute a set of SQL statements based on a certain condition or value of an expression. To form an ...
INp_introduceTEXT)BEGIN--检查输入参数不为空IFp_userNameISNULLORp_ageISNULLORp_introduceISNULLTHENSIGNALSQLSTATE'45000'SETMESSAGE_TEXT='Input parameters cannot be NULL';ENDIF;--检查userName不以张、王、李、兆开头IFLEFT(p_userName,1)='张'ORLEFT(p_userName,1)='王'ORLEFT(p_userName,1)='李'OR...
The statements_with_errors_or_warnings and x$statements_with_errors_or_warnings views have these columns: query The normalized statement string. db The default database for the statement, or NULL if there is none. exec_count The total number of times the statement has executed. ...
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> 如果工作接口可以进入了,就可以在Windows平台下,使用Navicat来连接数据库,填写对应的host,Port,用户名,密码就可以 3.2、读写分离测试 这里测试读写分离需要使用到Jmeter了,它是Java写第一套开源的压力测试工具,因为...
However, the setting should be viewed as temporary, not as a long term or permanent solution, because it causes new accounts created with the setting in effect to forego the improved authentication security. If you are using replication please take time to understand how the ...
The statements_with_errors_or_warnings and x$statements_with_errors_or_warnings views have these columns: query The normalized statement string. db The default database for the statement, or NULL if there is none. exec_count The total number of times the statement has executed. errors...
A patched server could in fact reply with a file-transfer request to any statement, not just LOAD DATA LOCAL, so a more fundamental issue is that clients should not connect to untrusted servers.意思是:服务器对客户端的文件读取请求实际上是可以返回给客户端发送给服务端的任意语句请求的,不仅仅只是...