update

MySQL/common.sql

@@ -2,7 +2,14 @@
 show global status like 'Innodb_page_size';
 
 # 查询用户
-select * from mysql.user;
+select *
+from mysql.user;
 
 # 查询表的创建语句
-SHOW CREATE TABLE sku.person;
+show create table sku.person;
+
+# 查询某个表占用的空间
+select concat(round(sum(data_length / 1024 / 1024), 2), 'MB') as size
+from information_schema.tables
+where table_schema = 'fortern_qqnt'
+  and table_name = 'group_msg_table';