Mysql 数据词典

1.mysql的包含数据库的tables和列的信息。下列语句是创建临时表，并将查询到的信息插入到临时表中。

CREATE temporary table dictionarttemp
SELECT 
    C.TABLE_CATALOG,
    C.TABLE_SCHEMA,
    C.TABLE_NAME,
    C.COLUMN_NAME,
    C.ORDINAL_POSITION,
    C.COLUMN_DEFAULT,
    C.IS_NULLABLE,
    C.DATA_TYPE,
    C.CHARACTER_MAXIMUM_LENGTH,
    C.CHARACTER_OCTET_LENGTH,
    C.NUMERIC_PRECISION,
    C.NUMERIC_SCALE,
    C.DATETIME_PRECISION,
    C.CHARACTER_SET_NAME,
    C.COLLATION_NAME,
    C.COLUMN_TYPE,
    C.COLUMN_KEY,
    C.EXTRA,
    C.PRIVILEGES,
    C.COLUMN_COMMENT
FROM
    information_schema.COLUMNS C
        INNER JOIN
    information_schema.TABLES T ON C.TABLE_SCHEMA = T.TABLE_SCHEMA
        AND C.TABLE_NAME = T.TABLE_NAME
WHERE
    T.TABLE_SCHEMA = '数据库表名'; SELECT * FROM dictionarttemp;

2.导出临时表的数据：利用Navicat 导出数据