mysql conditional statements

SQL injection with MySQLThe author of this article: AngelArticle Nature: OriginalRelease Date: 2004-09-16This article has been published in the "Hacker defense" July issue, reproduced please specify. As a result of writing for a long time,

Concrete Example 1. PHP Server ComponentsFor beginners, it is recommended to use the integrated server component, which already includes PHP, Apache, Mysql and other services, eliminating the time spent by developers in the tedious configuration

DirectoryPrinciple 1Master-Slave Synchronization configuration 2Master server Synchronization User Authorization 2Configuring MY.CNF files for MySQL master server 3Standby configuration: 4Common commands: 5Dual master Configuration my.cnf

MySQL Error: (2006, ' MySQL server has gone away ') the problem is that the client and MySQL server link between the broken. The reason for this is that the SQL operation is typically too long, or that the data being transmitted is too large (for

SELECT query Statements and conditional statementsInsert Insertion StatementUpdate UPDATES statement (Modify statement)Delete Deletion statement Writing standard: All SQL operation statements are written in uppercase letters, others are lowercase.

I. Introduction of binlog-rollback.pl Toolsis a Perl-developed scripting tool that primarily generates a reverse DML SQL statement:#基于row模式的binlog，生成DML(insert/update/delete)的rollback语句#通过mysqlbinlog -v 解析binlog生成可读的sql文件#提取需要处理的有效sql#"###

in Oracle, case and then and decode usage one. Case... then syntax: – Writing one: CaseWhen value 1 then return value 1 when value 2 then return value 2ElseDefault Value – two: CaseWhen condition 1 then return value 1 when condition 2 then return

Transferred from: http://www.cnblogs.com/suoning/p/5744849.htmlThe contents of this chapter: View, add/delete/change/Search Trigger, Add/delete/change/check Stored procedures, add/delete/change/check Stored procedure three kinds

1 Character Set issuesProblem: Executing the./manage.py createdb command in Django appears:Django.db.utils.OperationalError: (1366, "Incorrect string value: ' \\xC4\\x9A\\xC2\\x81vi ... ' for column ' file ' at row 1" )To view the MySQL

Applications (such as PHP) execute MYSQL statements in batches for a long time. Execute an SQL statement, but the SQL statement is too large or the statement contains BLOB or longblob fields. For example, processing image data. MySQL server has gone