mysql insert ignore

Label:1, first need to modify the MySQL database configuration file My.ini, this file is placed in the MySQL root directory. Look for the Default-character-set property under this file and change its value to UTF8 ( Note: Not utf-8, also note case ), You need to modify the value of all properties of the Default-character-set property to UTF8. Example: default-character-set = UTF8 Tip: There are two defau

The Android client has a login registration program. when registering, enter the user name and password. the client uploads the form data to the Servlet in The GET mode, and then the Servlet uses Stringnamerequest. getParameter ( quot; username quot;); Stringpasswordrequest. getParameter ( quot; password quot;); obtain the user name and password, and then execute the SQL statement to insert the user name and password into

follows: INSERT into ' class ' SELECT * "Class1 ' on DUPLICATE KEY UPDATE ' class '. ' Course ' = ' class1 '. ' Course ' Other key: Delayed as a quick insert, not very concerned about the failure, improve the insertion performance. IGNORE only focus on primary key corresponding record is not present, added without, and ignored. For more informa

This article is a MySQL database insert, UPDATE, delete and replace statements in the use of detailed analysis of the introduction, the need for friends to refer to the MySQL database insert and UPDATE statements Introduction: The SQL used to manipulate the database is generally divided into two kinds, one is the quer

MySQL insert delayed, mysqldelayed Insert delayed syntax INSERT [LOW_PRIORITY | DELAYED | HIGH_PRIORITY] [IGNORE] [INTO] tbl_name [(col_name,...)] VALUES ({expr | DEFAULT },...), (...),... [on duplicate key update col_name = expr,...] or:

Mysql Stored Procedure example (insert data to different sub-tables), mysql Stored Procedure USE test;Drop procedure if exists test. generate_records;Delimiter $Create procedure test. generate_records (in v_count bigint, in v_phone bigint)BEGINSet @ vCount = v_count;Set @ vPhone = v_phone;Set @ vLoopCount = 3;Set @ I = 1; While (@ I DoSet @ vPhone = @ vPhone + 1;

How to insert invalid columns when inserting data in MySQL 1. Error Description Com. mysql. jdbc. exception: jdbc4.MySQLSyntaxErrorException: Unknown column 'man' in 'Field list' 2. error cause Field in the database table: sno sname sage ssex When inserting data: sno sname sage man Originally, we wanted to inser