对于 MySQL 数据库,您可以使用以下查询比较视图和表(列名称和列类型):
SET @firstDatabaseName = '[first database name]';
SET @secondDatabaseName = '[second database name]';
SELECT * FROM
(SELECT
CONCAT(cl.TABLE_NAME, ' [', cl.COLUMN_NAME, ', ', cl.COLUMN_TYPE, ']') tableRowType
FROM information_schema.columns cl, information_schema.TABLES ss
WHERE
cl.TABLE_NAME = ss.TABLE_NAME AND
cl.TABLE_SCHEMA = @firstDatabaseName AND
ss.TABLE_TYPE IN('BASE TABLE', 'VIEW')
ORDER BY
cl.table_name ) AS t1
LEFT JOIN
(SELECT
CONCAT(cl.TABLE_NAME, ' [', cl.COLUMN_NAME, ', ', cl.COLUMN_TYPE, ']') tableRowType
FROM information_schema.columns cl, information_schema.TABLES ss
WHERE
cl.TABLE_NAME = ss.TABLE_NAME AND
cl.TABLE_SCHEMA = @secondDatabaseName AND
ss.TABLE_TYPE IN('BASE TABLE', 'VIEW')
ORDER BY
cl.table_name ) AS t2 ON t1.tableRowType = t2.tableRowType
WHERE
t2.tableRowType IS NULL
UNION
SELECT * FROM
(SELECT
CONCAT(cl.TABLE_NAME, ' [', cl.COLUMN_NAME, ', ', cl.COLUMN_TYPE, ']') tableRowType
FROM information_schema.columns cl, information_schema.TABLES ss
WHERE
cl.TABLE_NAME = ss.TABLE_NAME AND
cl.TABLE_SCHEMA = @firstDatabaseName AND
ss.TABLE_TYPE IN('BASE TABLE', 'VIEW')
ORDER BY
cl.table_name ) AS t1
RIGHT JOIN
(SELECT
CONCAT(cl.TABLE_NAME, ' [', cl.COLUMN_NAME, ', ', cl.COLUMN_TYPE, ']') tableRowType
FROM information_schema.columns cl, information_schema.TABLES ss
WHERE
cl.TABLE_NAME = ss.TABLE_NAME AND
cl.TABLE_SCHEMA = @secondDatabaseName AND
ss.TABLE_TYPE IN('BASE TABLE', 'VIEW')
ORDER BY
cl.table_name ) AS t2 ON t1.tableRowType = t2.tableRowType
WHERE
t1.tableRowType IS NULL;
如果您更喜欢使用带有 UI 的工具,也可以使用此脚本https://github.com/dlevsha/compalex https://github.com/dlevsha/compalex它可以比较表、视图、键等。
Compalex 是一个用于比较两个数据库模式的轻量级脚本。它
支持 MySQL、MS SQL Server 和 PostgreSQL。
Screenshot (compare tables)