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MySQL Load data infile ERROR 1261 (01000)
在 MySQL 中使用 load data infile 命令导入数据文件到 MySQL 数据库中的时候， 如果遇到 MySQL 错误：“ERROR 1261 (01000)” ，则很可能是由于数据文件中的列数跟 MySQL 数据表字段数目没有完全匹配，并且 sql_mode 设为 strict 模式的缘故。 要想在这种情况下继续导入数据到 MySQL 表中，则需要设置 MySQL sql_mode...
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Ignore foreign key constraints during the load operation
If you want to ignore foreign key constraints during the load operation, you can issue a SET foreign_key_checks = 0 statement before executing...
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Protected: LABs and quiz
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Simple Definitions
EXPLANATION OF COMMANDS/CLAUSES USED WITH ‘SELECT’ STATEMENTS % Wildcard AS Allows you to name the displayed column. Select f_name,...
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COLUMN TYPES
COLUMN TYPES (UPDATED: October 10, 2011) TEXT CHAR( ) A fixed section from 0 to 255 characters long. VARCHAR( ) A variable section from 0 to 255 characters...
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Protected: Create a backup:Upload from a backup:input file;output file;update
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Protected: create a database，primary key, foreign key
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MySQL Triggers: How do you abort an INSERT, UPDATE or DELETE with a trigger?
CREATE TRIGGER mytable_trigger_example BEFORE INSERT FOR EACH ROW BEGIN IF(NEW.important_value) < (fancy * dancy * calculation) THEN DECLARE dummy INT; SELECT Your meaningful error message goes here...
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