查詢表信息（表名/表描述）：

SELECT table_name name,TABLE_COMMENT value FROM INFORMATION_SCHEMA.TABLES WHERE table_type='base table' and table_schema = '數據庫名' order by table_name asc

查詢列信息（列ID/列名/數據類型/長度/精度/是否可以為null/默認值/是否自增/是否是主鍵/列描述）：

方式一：

SHOW FULL COLUMNS FROM 表名

方式二：

select ORDINAL_POSITION as Colorder,Column_Name as ColumnName,data_type as TypeName,COLUMN_COMMENT as DeText, (case when data_type = 'float' or data_type = 'double' or data_type = 'decimal' then NUMERIC_PRECISION else CHARACTER_MAXIMUM_LENGTH end ) as length, NUMERIC_SCALE as Scale,( case when EXTRA='auto_increment' then 1 else 0 end) as IsIdentity,(case when COLUMN_KEY='PRI' then 1 else 0 end) as IsPK, (case when IS_NULLABLE = 'NO' then 0 else 1 end)as CanNull,COLUMN_DEFAULT as DefaultVal from information_schema.columns where table_schema = '數據庫名' and table_name = '表名' order by ORDINAL_POSITION asc

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轉載于:https://www.cnblogs.com/lztkdr/p/7839952.html

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