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ALTER [IGNORE] TABLE tbl_name alter_spec [, alter_spec ...]
alter_specification:
ADD [COLUMN] create_definition [FIRST | AFTER column_name ]
or ADD INDEX [index_name] (index_col_name,...)
or ADD PRIMARY KEY (index_col_name,...)
or ADD UNIQUE [index_name] (index_col_name,...)
or ALTER [COLUMN] col_name {SET DEFAULT literal | DROP DEFAULT}
or CHANGE [COLUMN] old_col_name create_definition
or MODIFY [COLUMN] create_definition
or DROP [COLUMN] col_name
or DROP PRIMARY KEY
or DROP INDEX index_name
or RENA ......
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/*
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author£ºchinayaosir
blog: http://blog.csdn.net/chinayaosir/
QQ: 44633197
ÉùÃ÷£ºÑϽûÆäËüÍøÕ¾²»¾¹ý×÷ÕßchinayaosirͬÒâÈÎÒâ×ªÔØ
*/
/******************************************************************************/
/*script test ok with microsoft sqlserver 2000 ²éѯ·ÖÎöÆ÷ */
/******************************************************************************/
/*DB:MSSQL2000 SCRIPT*/
/*0.drop table list*/
drop table Employee;
drop table Department;
drop table Post;
drop table Account;
/*********************************************************/
/*DB ......
/******************************************************************************/
/*
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author£ºchinayaosir
blog: http://blog.csdn.net/chinayaosir/
QQ: 44633197
ÉùÃ÷£ºÑϽûÆäËüÍøÕ¾²»¾¹ý×÷ÕßchinayaosirͬÒâÈÎÒâ×ªÔØ
*/
/******************************************************************************/
/*script test ok with microsoft sqlserver 2000 ²éѯ·ÖÎöÆ÷ */
/******************************************************************************/
/*DB:MSSQL2000 SCRIPT*/
/*0.drop table list*/
drop table Employee;
drop table Department;
drop table Post;
drop table Account;
/*********************************************************/
/*DB ......
/******************************************************************************/
/*
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ÔËÐл·¾³3:oracle 9i SQL*PLUSÃüÁîÐнçÃæ
author£ºchinayaosir
blog: http://blog.csdn.net/chinayaosir/
QQ: 44633197
ÉùÃ÷£ºÑϽûÆäËüÍøÕ¾²»¾¹ý×÷ÕßchinayaosirͬÒâÈÎÒâ×ªÔØ
*/
/******************************************************************************/
/*script test ok with microsoft sqlserver 2000 ²éѯ·ÖÎöÆ÷ */
/******************************************************************************/
/*DB:MSSQL2000 SCRIPT*/
/*0.drop table list*/
drop table Employee;
drop table Department;
drop table Post;
drop table Account;
/*********************************************************/
/*DB ......