查找所有表匹配列

Question

我有81桌，我要找到匹配的列和输出就像一个列表：

"columnName" found in 3 tables: 
table1 
table2 
table3 

"columnName2" found in 4 tables: 
table1 
table3 
table4 
table5 

Answer 1

表INFORMATION_SCHEMA.COLUMNS是包含所有表中的所有列的系统表。您可以通过选择它来查看它。

对于你的问题，你应该试试这个：

select I.Column_name, 
table_name, 
table_count 
from INFORMATION_SCHEMA.COLUMNS I 
inner join 
(
Select Column_name, 
count(*) as table_count 
from INFORMATION_SCHEMA.COLUMNS 
group by Column_name) as T on T.Column_name = I.Column_name 

你将有一个表，每个列名，表和列table_count计数。

我ust不知道如何输出一个列表。你应该把它放在excel然后如果你想格式化我猜..

告诉我，如果你有问题！

Answer 2

查询下面应该给你想要的结果。如果您遇到任何问题，请告诉我。如果你想具体介绍一下单个数据库您可以修改脚本

此查询为您提供列名 - 串连表名 - 表数这里

SELECT t.CNAME AS ColumnName, STUFF(
(SELECT ',' + S.TNAME 
FROM 
(
    SELECT C.NAME AS CNAME , T.NAME AS TNAME 
    FROM SYS.OBJECTS AS T 
    JOIN SYS.COLUMNS AS C 
    ON T.OBJECT_ID=C.OBJECT_ID 
    WHERE T.TYPE_DESC='USER_TABLE' 
)s 
WHERE s.CNAME = t.CNAME 
FOR XML PATH('')),1,1,'') AS TablesUsed, 
COUNT(t.TNAME) 
FROM 
(
    SELECT C.NAME AS CNAME , T.NAME AS TNAME 
    FROM SYS.OBJECTS AS T 
    JOIN SYS.COLUMNS AS C 
    ON T.OBJECT_ID=C.OBJECT_ID 
    WHERE T.TYPE_DESC='USER_TABLE' 
)t 
GROUP BY t.CNAME 
HAVING COUNT(t.TNAME) > 1 
ORDER BY COUNT(t.TNAME) DESC