USE information_schema;
SELECT
C.COLUMN_NAME AS '字段名',
C.COLUMN_TYPE AS '数据类型',
C.IS_NULLABLE AS '允许为空',
C.EXTRA AS 'PK',
C.COLUMN_COMMENT AS '字段说明'
FROM
COLUMNS C
INNER JOIN TABLES T ON C.TABLE_SCHEMA = T.TABLE_SCHEMA
AND C.TABLE_NAME = T.TABLE_NAME
WHERE
T.TABLE_SCHEMA = 'world' and T.TABLE_NAME='city'
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USE information_schema;
SELECT
C.TABLE_NAME AS '表名' ,
T.TABLE_COMMENT AS '表中文名' ,
C.COLUMN_NAME AS '字段名' ,
C.COLUMN_COMMENT AS '字段中文名' ,
C.COLUMN_TYPE AS '数据类型' ,
C.EXTRA AS '主键'
FROM
COLUMNS C
INNER JOIN TABLES T ON C.TABLE_SCHEMA = T.TABLE_SCHEMA
AND C.TABLE_NAME = T.TABLE_NAME
WHERE
T.TABLE_SCHEMA = 'world'
-- AND T.TABLE_NAME = 'city'
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