mysql新建表修改表sql指令碼
新建表語句：
-- -----------------------------------------------
-- 全量指令碼
-- -----------------------------------------------
-- 建立表 compet_info(大賽資訊)的當前表
SELECT 'Create Table compet_info-大賽資訊...';
DROP TABLE IF EXISTS compet_info;
CREATE TABLE compet_info
(
serial_no int NOT NULL AUTO_INCREMENT,
compet_id varchar(100) DEFAULT ' ' ,
compet_out_id varchar(100) DEFAULT ' ' ,
create_datetime timestamp DEFAULT '0000-00-00 00:00:00' ,
modi_datetime timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP ,
compet_name varchar(100) DEFAULT ' ' ,
compet_logo varchar(100) DEFAULT ' ' ,
compet_content varchar(4000) DEFAULT ' ' ,
compet_reward_content varchar(4000) DEFAULT ' ' ,
compet_begin_time datetime DEFAULT sysdate() ,
compet_end_time datetime DEFAULT sysdate() ,
signup_begin_time datetime DEFAULT sysdate() ,
signup_end_time datetime DEFAULT sysdate() ,
is_share char(1) DEFAULT 0 ,
remark varchar(2000) DEFAULT ' ' ,
send_companyid varchar(100) DEFAULT ' ' ,
target_companyid varchar(100) DEFAULT ' ' ,
compet_status char(1) DEFAULT 0 ,
businsys_no varchar(10) DEFAULT ' ' ,
compet_type char(1) DEFAULT 2 ,
archive_date int DEFAULT 0 ,
archive_status char(1) DEFAULT 0 ,
inner_send_companyid varchar(100) DEFAULT 10001 ,
is_add char(1) DEFAULT 0 ,
is_hot char(1) DEFAULT 0 ,
rank_model char(1) DEFAULT 2 ,
PRIMARY KEY(serial_no)
);
CREATE UNIQUE INDEX idx_competinfo ON compet_info(serial_no ASC ,compet_id ASC );
-- -----------------------------------------------
-- 升級指令碼
-- -----------------------------------------------
-- 修改表的指令碼，新增欄位，儲存過程，後面可以配合刪除儲存過程
-- begin --1.0.3.1 資料表compet_info，添加了表字段（suffix） liusn19096
DROP PROCEDURE IF EXISTS sp_db_mysql;
DELIMITER $$
CREATE PROCEDURE sp_db_mysql()
BEGIN
declare v_rowcount int;
select count(1) into v_rowcount from information_schema.columns where table_name='compet_info' and column_name='suffix';
if v_rowcount = 0 then
ALTER TABLE compet_info ADD suffix varchar(24) DEFAULT ' ' ;
end if;
END$$
DELIMITER ;
call sp_db_mysql();
-- 修改表的指令碼，刪除欄位，儲存過程，後面可以配合刪除儲存過程
-- begin --1.0.3.2 資料表compet_info，刪除了表字段（suffix）
DROP PROCEDURE IF EXISTS sp_db_mysql;
DELIMITER $$
CREATE PROCEDURE sp_db_mysql()
BEGIN
declare v_rowcount int;
select count(1) into v_rowcount from information_schema.columns where table_name='compet_info' and column_name='suffix';
if v_rowcount = 1 then
ALTER TABLE compet_info DROP COLUMN suffix;
end if;
END$$
DELIMITER ;
call sp_db_mysql();
-- end --1.0.3.2 資料表compet_info，刪除了表字段（suffix）
-- 重命名錶欄位，rank_model->suffix，儲存過程，用過之後可刪除
-- begin --1.0.3.3 資料表compet_info，重新命名了表字段（rank_model->suffix）
DROP PROCEDURE IF EXISTS sp_db_mysql;
DELIMITER $$
CREATE PROCEDURE sp_db_mysql()
BEGIN
declare v_rowcount int;
declare v_rowcount2 int;
select count(1) into v_rowcount from information_schema.columns where table_name='compet_info' and column_name='rank_model';
select count(1) into v_rowcount2 from information_schema.columns where table_name='compet_info' and column_name='suffix';
if v_rowcount = 1 and v_rowcount2 = 0 then
ALTER TABLE compet_info CHANGE rank_model suffix char(1) DEFAULT 2;
end if;
END$$
DELIMITER ;
call sp_db_mysql();
-- end --1.0.3.3 資料表compet_info，重新命名了表字段（rank_model->suffix）
-- 增加索引，這裡增加的是唯一索引，不唯一的話，就把UNIQUE去掉
-- begin --1.0.3.3 資料表compet_info，增加索引（ idx_compet_info:[compet_id,compet_out_id]）
DROP PROCEDURE IF EXISTS sp_db_mysql;
DELIMITER $$
CREATE PROCEDURE sp_db_mysql()
BEGIN
declare v_rowcount int;
SELECT
count(1) INTO v_rowcount
FROM
information_schema.INNODB_SYS_TABLES a,
information_schema.INNODB_SYS_INDEXES b
WHERE
a.TABLE_ID = b.TABLE_ID
AND a.`NAME` = lower('fz_compet/compet_info'); -- fz_compet 指的是scheme的名稱，idx_compet_info是索引的名稱
AND b.`NAME` = lower('idx_compet_info');
if v_rowcount = 0 then
CREATE UNIQUE INDEX idx_compet_info ON compet_info(compet_id ASC ,compet_out_id ASC );
end if;
END$$
DELIMITER ;
call sp_db_mysql();
-- end --1.0.3.3 資料表compet_info，增加索引（ idx_compet_info:[compet_id,compet_out_id]）
-- 刪除索引
-- begin --1.0.3.4 資料表compet_info，刪除了表索引（idx_compet_info）
DROP PROCEDURE IF EXISTS sp_db_mysql;
DELIMITER $$
CREATE PROCEDURE sp_db_mysql()
BEGIN
declare v_rowcount int;
SELECT
count(1) INTO v_rowcount
FROM
information_schema.INNODB_SYS_TABLES a,
information_schema.INNODB_SYS_INDEXES b
WHERE
a.TABLE_ID = b.TABLE_ID
AND a.`NAME` = lower('fz_compet/compet_info')
AND b.`NAME` = lower('idx_compet_info');
if v_rowcount = 1 then
DROP INDEX idx_compet_info on compet_info;
end if;
END$$
DELIMITER ;
call sp_db_mysql();
-- end --1.0.3.4 資料表compet_info，刪除了表索引（idx_compet_info）
-- begin --1.0.3.5 資料表compet_info，修改了表字段型別（compet_name）
DROP PROCEDURE IF EXISTS sp_db_mysql;
DELIMITER $$
CREATE PROCEDURE sp_db_mysql()
BEGIN
declare v_rowcount int;
select count(1) into v_rowcount from information_schema.columns where table_name='compet_info' and column_name='compet_name';
if v_rowcount = 1 then
ALTER TABLE compet_info MODIFY COLUMN compet_name int DEFAULT 0;
end if;
END$$
DELIMITER ;
call sp_db_mysql();
-- end --1.0.3.5 資料表compet_info，修改了表字段型別（compet_name）
-- 修改表字段允許空
-- begin --1.0.3.5 資料表compet_info，修改了表字段允許空（compet_name）
ALTER TABLE compet_info MODIFY compet_name varchar(100);
-- end --1.0.3.5 資料表compet_info，修改了表字段允許空（compet_name）
-- 增加表字段主鍵
-- begin --1.0.3.5 資料表compet_info，增加了表字段主鍵（compet_id）
DROP PROCEDURE IF EXISTS sp_db_mysql;
DELIMITER $$
CREATE PROCEDURE sp_db_mysql()
BEGIN
declare v_rowcount int;
SELECT
count(1) INTO v_rowcount
FROM
information_schema.INNODB_SYS_TABLES a,
information_schema.INNODB_SYS_INDEXES b
WHERE
a.TABLE_ID = b.TABLE_ID
AND a.`NAME` = lower('stockbattle/compet_info')
AND b.`NAME` = 'PRIMARY';
if v_rowcount = 0 then
ALTER TABLE compet_info ADD CONSTRAINT compet_info_pk PRIMARY KEY(compet_id);
end if;
END$$
DELIMITER ;
call sp_db_mysql();
-- end --1.0.3.5 資料表compet_info，增加了表字段主鍵（compet_id）