[英]Find all columns of a certain type in all tables in a SQL Server database
How can I find all columns of a certain type (for example NTEXT
) in all tables in a SQL Server database? 如何在SQL Server数据库的所有表中查找特定类型的所有列(例如
NTEXT
)?
I am looking for a SQL query. 我正在寻找一个SQL查询。
You can use following query to return fields 您可以使用以下查询返回字段
SELECT table_name [Table Name], column_name [Column Name]
FROM information_schema.columns where data_type = 'NTEXT'
You're going to need INFORMATION_SCHEMA. 你将需要INFORMATION_SCHEMA。 Try something like:
尝试类似的东西:
SELECT c.* from INFORMATION_SCHEMA.columns c
INNER JOIN INFORMATION_SCHEMA.tables t ON t.table_name = c.table_name
WHERE c.data_type = 'int' AND t.table_type = 'base table'
Also you can try 你也可以试试
SELECT OBJECT_NAME(c.OBJECT_ID) TableName, c.name ColumnName
FROM sys.columns AS c
JOIN sys.types AS t ON c.user_type_id=t.user_type_id
WHERE t.name = 'ntext'
ORDER BY c.OBJECT_ID;
GO
You can use the system view INFORMATION_SCHEMA.COLUMNS
. 您可以使用系统视图
INFORMATION_SCHEMA.COLUMNS
。 The data_type
column has what you're looking for. data_type
列包含您要查找的内容。
I did use the following Statement to find all tables that could possibly hold binary-data/files. 我确实使用以下语句来查找可能包含二进制数据/文件的所有表。
SELECT
table_name
FROM
INFORMATION_SCHEMA.TABLES T
WHERE
T.TABLE_CATALOG = 'MyDatabase' AND
EXISTS (
SELECT *
FROM INFORMATION_SCHEMA.COLUMNS C
WHERE
C.TABLE_CATALOG = T.TABLE_CATALOG AND
C.TABLE_SCHEMA = T.TABLE_SCHEMA AND
C.TABLE_NAME = T.TABLE_NAME AND
( C.DATA_TYPE = 'binary' OR
C.DATA_TYPE = 'varbinary' OR
C.DATA_TYPE = 'text' OR
C.DATA_TYPE = 'ntext' OR
C.DATA_TYPE = 'image' )
)
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.