SQL Server按名称搜索列
我正在做一些侦察工作,不得不通过几百个SQL Server数据库表来查找列 有没有一种方法可以轻松地在数据库中搜索列并只返回该列所属的表名 我发现了,但这也返回了包含该列名的存储过程SQL Server按名称搜索列,sql,sql-server,sql-server-2005,Sql,Sql Server,Sql Server 2005,我正在做一些侦察工作,不得不通过几百个SQL Server数据库表来查找列 有没有一种方法可以轻松地在数据库中搜索列并只返回该列所属的表名 我发现了,但这也返回了包含该列名的存储过程 SELECT OBJECT_NAME(object_id) FROM sys.columns WHERE name = 'foo' 这包括视图,但可以进一步过滤。不过,这可能有用 更一般地说 SELECT TABLE_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE COLUM
SELECT OBJECT_NAME(object_id) FROM sys.columns WHERE name = 'foo'
这包括视图,但可以进一步过滤。不过,这可能有用
更一般地说
SELECT TABLE_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE COLUMN_NAME = 'foo'
这应该对你有用。我每天都使用它。从information\u schema.columns中选择表名
select c.name as ColumnName, o.name as TableName
from sys.columns c
inner join sys.objects o on c.object_id = o.object_id
where c.name = 'MyColumnName'
其中列名称=“”
由于系统数据库中的系统详细信息在SQL Server的不同实现之间可能会发生更改,因此使用信息\u架构视图“更为正确”。获取
1) 完整列名2) 对象名称(包括架构)
3) 对象类型(表/视图)
4) 数据类型(良好的格式:varchar(6)或数字(5,2)等)
5) 空/非空
6) 有关标识、检查约束和默认信息的信息 试试这个:
DECLARE @Search varchar(200)
SET @Search='YourColumnName' --can be a partial or a complete name
SELECT
s.name as ColumnName
,sh.name+'.'+o.name AS ObjectName
,o.type_desc AS ObjectType
,CASE
WHEN t.name IN ('char','varchar') THEN t.name+'('+CASE WHEN s.max_length<0 then 'MAX' ELSE CONVERT(varchar(10),s.max_length) END+')'
WHEN t.name IN ('nvarchar','nchar') THEN t.name+'('+CASE WHEN s.max_length<0 then 'MAX' ELSE CONVERT(varchar(10),s.max_length/2) END+')'
WHEN t.name IN ('numeric') THEN t.name+'('+CONVERT(varchar(10),s.precision)+','+CONVERT(varchar(10),s.scale)+')'
ELSE t.name
END AS DataType
,CASE
WHEN s.is_nullable=1 THEN 'NULL'
ELSE 'NOT NULL'
END AS Nullable
,CASE
WHEN ic.column_id IS NULL THEN ''
ELSE ' identity('+ISNULL(CONVERT(varchar(10),ic.seed_value),'')+','+ISNULL(CONVERT(varchar(10),ic.increment_value),'')+')='+ISNULL(CONVERT(varchar(10),ic.last_value),'null')
END
+CASE
WHEN sc.column_id IS NULL THEN ''
ELSE ' computed('+ISNULL(sc.definition,'')+')'
END
+CASE
WHEN cc.object_id IS NULL THEN ''
ELSE ' check('+ISNULL(cc.definition,'')+')'
END
AS MiscInfo
FROM sys.columns s
INNER JOIN sys.types t ON s.system_type_id=t.system_type_id and t.is_user_defined=0
INNER JOIN sys.objects o ON s.object_id=o.object_id
INNER JOIN sys.schemas sh on o.schema_id=sh.schema_id
LEFT OUTER JOIN sys.identity_columns ic ON s.object_id=ic.object_id AND s.column_id=ic.column_id
LEFT OUTER JOIN sys.computed_columns sc ON s.object_id=sc.object_id AND s.column_id=sc.column_id
LEFT OUTER JOIN sys.check_constraints cc ON s.object_id=cc.parent_object_id AND s.column_id=cc.parent_column_id
WHERE s.name LIKE '%'+@Search+'%'
DECLARE@Search varchar(200)
SET@Search='YourColumnName'--可以是部分名称,也可以是完整名称
挑选
s、 列名称
,sh.name+'.+o.name作为ObjectName
,o.type_desc AS ObjectType
案例
当t.name在('char','varchar')中时,则t.name+'('+CASE,当s.max_length时,此存储过程将搜索table.name和column.name对
当我在代码中有“WhateverId”并且我想知道它(可能)存储在数据库中的什么位置时,我就使用它,而不需要实际阅读和理解代码。:)
当列名在表中必须是唯一的时,为什么要使用DISTINCT?我有一种奇怪的印象,即表名可能会出现多次(特别是当您有多个具有类似模式的数据库,并且不将查询限制为特定的模式或数据库时)。事后看来,distinct在大多数情况下可能是无用的。我创建了一个搜索过程、表、视图或作业的工具。您可以指定只搜索其中一个或全部。该链接指向堆栈溢出时的答案
DECLARE @Search varchar(200)
SET @Search='YourColumnName' --can be a partial or a complete name
SELECT
s.name as ColumnName
,sh.name+'.'+o.name AS ObjectName
,o.type_desc AS ObjectType
,CASE
WHEN t.name IN ('char','varchar') THEN t.name+'('+CASE WHEN s.max_length<0 then 'MAX' ELSE CONVERT(varchar(10),s.max_length) END+')'
WHEN t.name IN ('nvarchar','nchar') THEN t.name+'('+CASE WHEN s.max_length<0 then 'MAX' ELSE CONVERT(varchar(10),s.max_length/2) END+')'
WHEN t.name IN ('numeric') THEN t.name+'('+CONVERT(varchar(10),s.precision)+','+CONVERT(varchar(10),s.scale)+')'
ELSE t.name
END AS DataType
,CASE
WHEN s.is_nullable=1 THEN 'NULL'
ELSE 'NOT NULL'
END AS Nullable
,CASE
WHEN ic.column_id IS NULL THEN ''
ELSE ' identity('+ISNULL(CONVERT(varchar(10),ic.seed_value),'')+','+ISNULL(CONVERT(varchar(10),ic.increment_value),'')+')='+ISNULL(CONVERT(varchar(10),ic.last_value),'null')
END
+CASE
WHEN sc.column_id IS NULL THEN ''
ELSE ' computed('+ISNULL(sc.definition,'')+')'
END
+CASE
WHEN cc.object_id IS NULL THEN ''
ELSE ' check('+ISNULL(cc.definition,'')+')'
END
AS MiscInfo
FROM sys.columns s
INNER JOIN sys.types t ON s.system_type_id=t.system_type_id and t.is_user_defined=0
INNER JOIN sys.objects o ON s.object_id=o.object_id
INNER JOIN sys.schemas sh on o.schema_id=sh.schema_id
LEFT OUTER JOIN sys.identity_columns ic ON s.object_id=ic.object_id AND s.column_id=ic.column_id
LEFT OUTER JOIN sys.computed_columns sc ON s.object_id=sc.object_id AND s.column_id=sc.column_id
LEFT OUTER JOIN sys.check_constraints cc ON s.object_id=cc.parent_object_id AND s.column_id=cc.parent_column_id
WHERE s.name LIKE '%'+@Search+'%'
CREATE OR ALTER PROC FindColumns
@ColumnName VARCHAR(MAX) = NULL,
@TableName VARCHAR(MAX) = NULL
AS
SELECT T.[name] AS TableName, C.[name] AS ColumnName
FROM sys.all_columns C
JOIN sys.tables T ON C.object_id = T.object_id
JOIN sys.types CT ON C.user_type_id = CT.user_type_id
WHERE (@ColumnName IS NULL OR C.[name] LIKE '%' + TRIM(@ColumnName) + '%')
AND (@TableName IS NULL OR T.[name] LIKE '%' + TRIM(@TableName) + '%')
ORDER BY T.[name], C.[name]