[RtpSystem Mysql] #Mysql

batch_alter_field.sql

#批量修改表字段

SELECT CONCAT('alter table ',TABLE_NAME,' modify ',COLUMN_NAME,' varchar(500) ;') AS '修改语句'
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA='scrm_wechat_1' AND COLUMN_NAME IN ('resource_url')


# 批量修改 rtpsystem_go中所有deleted_at字段默认值为null
SELECT
	CONCAT( 'alter table ', TABLE_NAME, ' modify ', COLUMN_NAME, ' timestamp NULL DEFAULT NULL ;' ) AS '修改语句' 
FROM
	INFORMATION_SCHEMA.COLUMNS 
WHERE
	TABLE_SCHEMA = 'rtpsystem_go' 
	AND COLUMN_NAME IN ( 'deleted_at')

init.sql

update customers set balance = 0,expense_count = 0;
update providers set balance = 0,expense_count = 0;
TRUNCATE TABLE provider_balance_changes;
TRUNCATE TABLE customer_balance_changes;
TRUNCATE TABLE channel_orders;
TRUNCATE TABLE channel_order_submit_records;
TRUNCATE TABLE sys_operation_records;

remove comment.sql

# 删除数据库字段注释
# table_schema为表名

SELECT    
concat(   
    'alter table ',    
    table_schema, '.', table_name,    
    ' modify column ', column_name, ' ', column_type, ' ',    
    if(is_nullable = 'YES', ' ', 'not null '),    
    if(column_default IS NULL, '',    
        if(   
            data_type IN ('char', 'varchar')    
            OR    
            data_type IN ('date', 'datetime', 'timestamp') AND column_default != 'CURRENT_TIMESTAMP',    
            concat(' default ''', column_default,''''),    
            concat(' default ', column_default)   
        )   
    ),     
    if(extra is null or extra='','',concat(' ',extra)),
    ' comment ''', ''';'   
) s   
FROM information_schema.columns   
WHERE table_schema = 'recharge'