如何查找依赖于表格特定列的对象。
例如：
表：SomeTable
列数： col1 pk， COL2， COL3
我想找到所有依赖于col1（Pk）的对象
答案 0 :(得分：15)
@ NoFuchsGavin的脚本通常效果很好但由于sysdepends的问题而有一些限制（请参阅this blog post by Pinal Dave以获取不正确结果的示例）。
Microsoft还建议您避免在新的开发工作中使用sysdepends。
因此，我们可以按建议here使用sys.dm_sql_referencing_entities和sys.dm_sql_referenced_entities。
但是我注意到，由于referenced_minor_name为NULL，这有时会排除列引用。因此，我添加了另一个可能引入误报的条件，但确保不会从结果集中省略列引用。
DECLARE @SchemaName sysname = '{0}';
DECLARE @TableName sysname = '{1}';
DECLARE @ColumnName sysname = '{2}';
SELECT
@SchemaName + '.' + @TableName AS [USED_OBJECT],
@ColumnName AS [COLUMN],
referencing.referencing_schema_name + '.' + referencing_entity_name AS USAGE_OBJECT,
CASE so.type
WHEN 'C' THEN 'CHECK constraint'
WHEN 'D' THEN 'Default'
WHEN 'F' THEN 'FOREIGN KEY'
WHEN 'FN' THEN 'Scalar function'
WHEN 'IF' THEN 'In-lined table-function'
WHEN 'K' THEN 'PRIMARY KEY'
WHEN 'L' THEN 'Log'
WHEN 'P' THEN 'Stored procedure'
WHEN 'R' THEN 'Rule'
WHEN 'RF' THEN 'Replication filter stored procedure'
WHEN 'S' THEN 'System table'
WHEN 'TF' THEN 'Table function'
WHEN 'TR' THEN 'Trigger'
WHEN 'U' THEN 'User table'
WHEN 'V' THEN 'View'
WHEN 'X' THEN 'Extended stored procedure'
END AS USAGE_OBJECTTYPE,
so.[type] AS USAGE_OBJECTTYPEID
FROM sys.dm_sql_referencing_entities
(
@SchemaName + '.' + @TableName,
'object'
) referencing
INNER JOIN sys.objects so
ON referencing.referencing_id = so.object_id
WHERE
EXISTS
(
SELECT
*
FROM
sys.dm_sql_referenced_entities
(
referencing_schema_name + '.' + referencing_entity_name,
'object'
) referenced
WHERE
referenced_entity_name = @TableName
AND
(
referenced.referenced_minor_name LIKE @ColumnName
-- referenced_minor_name is sometimes NULL
-- therefore add below condition (can introduce False Positives)
OR
(
referenced.referenced_minor_name IS NULL
AND
OBJECT_DEFINITION
(
OBJECT_ID(referencing_schema_name + '.' + referencing_entity_name)
) LIKE '%' + @ColumnName + '%'
)
)
)
ORDER BY
USAGE_OBJECTTYPE,
USAGE_OBJECT
以上脚本基于@NoFuchsGavin的回答和this blog post。
我有兴趣知道是否有人设法找到一种不会引入假阴性或阳性的更好方法。
答案 1 :(得分：9)
这应该有效！
-- Search in All Objects
SELECT OBJECT_NAME(OBJECT_ID),definition
FROM sys.sql_modules
WHERE definition LIKE '%' + 'ColumnToBeSearched' + '%'
Order by 1
GO
-- Search in Stored Procedure Only
SELECT DISTINCT OBJECT_NAME(OBJECT_ID),
object_definition(OBJECT_ID)
FROM sys.Procedures
WHERE object_definition(OBJECT_ID) LIKE '%' + 'ColumnToBeSearched' + '%'
GO
答案 2 :(得分：6)
只需替换{0}和{1}！
declare @tbl_nme as varchar(50)
declare @col_nme as varchar(50)
declare @level int
set @level = 1
set @tbl_nme= '{0}' --TableName
set @col_nme= '{1}' --ColumnName
select
obj.name as obj_nm
, col.name as col_nm
, depobj.name as dep_obj_nm
, CASE depobj.type
WHEN 'C' THEN 'CHECK constraint'
WHEN 'D' THEN 'Default'
WHEN 'F' THEN 'FOREIGN KEY'
WHEN 'FN' THEN 'Scalar function'
WHEN 'IF' THEN 'In-lined table-function'
WHEN 'K' THEN 'PRIMARY KEY'
WHEN 'L' THEN 'Log'
WHEN 'P' THEN 'Stored procedure'
WHEN 'R' THEN 'Rule'
WHEN 'RF' THEN 'Replication filter stored procedure'
WHEN 'S' THEN 'System table'
WHEN 'TF' THEN 'Table function'
WHEN 'TR' THEN 'Trigger'
WHEN 'U' THEN 'User table'
WHEN 'V' THEN 'View'
WHEN 'X' THEN 'Extended stored procedure'
END as dep_obj_type
, null as dep_col_nm
, depobj.type as dep_obj_typeID
, @level as level
into #temp
from sysobjects obj
join syscolumns col on obj.id = col.id
left join (sysdepends dep join sysobjects depobj on depobj.id = dep.id)
on obj.id = dep.depid
and col.colid = dep.depnumber
where obj.name = @tbl_nme
and col.name = @col_nme
while (@@rowcount > 0)
begin
set @level = @level + 1
insert into #temp
select
obj.name as obj_nm
, col.name as col_nm
, depobj.name as dep_obj_nm
, CASE depobj.type
WHEN 'C' THEN 'CHECK constraint'
WHEN 'D' THEN 'Default'
WHEN 'F' THEN 'FOREIGN KEY'
WHEN 'FN' THEN 'Scalar function'
WHEN 'IF' THEN 'In-lined table-function'
WHEN 'K' THEN 'PRIMARY KEY'
WHEN 'L' THEN 'Log'
WHEN 'P' THEN 'Stored procedure'
WHEN 'R' THEN 'Rule'
WHEN 'RF' THEN 'Replication filter stored procedure'
WHEN 'S' THEN 'System table'
WHEN 'TF' THEN 'Table function'
WHEN 'TR' THEN 'Trigger'
WHEN 'U' THEN 'User table'
WHEN 'V' THEN 'View'
WHEN 'X' THEN 'Extended stored procedure'
END as dep_obj_type
, null as dep_col_nm
, depobj.type as dep_obj_typeID
, @level as level
from sysobjects obj
join syscolumns col on obj.id = col.id
left join (sysdepends dep join sysobjects depobj on depobj.id = dep.id)
on obj.id = dep.depid
and col.colid = dep.depnumber
where exists(select 1 from #temp a where obj.name = a.dep_obj_nm and
col.name = a.dep_col_nm and level = @level - 1 and dep_col_nm is not null)
end
select
obj_nm AS 'TABLE',
col_nm AS 'COLUMN',
dep_obj_nm AS 'USAGE_OBJECT',
dep_obj_type AS 'USAGE_OBJECTTYPE',
dep_obj_typeID AS 'USAGE_OBJECTTYPEID'
from #temp
drop table #temp
答案 3 :(得分：6)
accepted answer above中提供的sql应该在sys.foreign_keys和sys.foreign_key_columns之间包含一个额外的连接条件。请参阅以下“和”开头的行：
from sys.foreign_keys k
inner join sys.foreign_key_columns f
on f.parent_object_id = k.parent_object_id
and f.constraint_object_id = k.object_id
作为参考，这是带有修改连接的整个脚本：
select OBJECT_NAME(k.parent_object_id) as parentTable
, c1.name as parentColumn
, OBJECT_NAME(k.referenced_object_id) as referencedTable
, c2.name as referencedColumn
from sys.foreign_keys k
inner join sys.foreign_key_columns f
on f.parent_object_id = k.parent_object_id
and f.constraint_object_id = k.object_id
inner join sys.columns c1
on c1.column_id = f.parent_column_id
and c1.object_id = k.parent_object_id
inner join sys.columns c2
on c2.column_id = f.referenced_column_id
and c2.object_id = k.referenced_object_id
where c2.name = 'GUID'
and OBJECT_NAME(k.referenced_object_id) = 'AuthDomain'
答案 4 :(得分：2)
试一试：这将提供引用表格Pk的所有对象名称。
select OBJECT_NAME(parent_object_id) from sys.foreign_keys where referenced_object_id = OBJECT_ID('YourTableName')
答案 5 :(得分：0)
这应该可以解决问题：
SELECT OBJECT_NAME (referencing_id), referencing_id, referenced_id
FROM sys.sql_expression_dependencies d
WHERE OBJECT_NAME(d.referenced_id) = '<TABLE_NAME>'
AND OBJECT_DEFINITION(referencing_id) = '<COLUMN_NAME>';
来源：http://www.mssqltips.com/sqlservertip/2999/different-ways-to-find-sql-server-object-dependencies/
或者，要显示表的所有依赖项，请使用
EXEC sp_depends <TABLE_NAME>
答案 6 :(得分：0)
查找特定的列依赖项
SELECT OBJECT_NAME(referencing_id),
referenced_database_name,
referenced_schema_name,
referenced_entity_name
FROM sys.sql_expression_dependencies
WHERE OBJECT_NAME(referenced_id) = 'table_name'
AND OBJECT_DEFINITION(referencing_id) LIKE '%field_name%';
答案 7 :(得分：0)
正在100％罚款。尝试使用这个。它将为您提供更多细节。谢谢
SELECT
FK.TABLE_NAME AS Key_Table,
CU.COLUMN_NAME AS Foreignkey_Column,
PK.TABLE_NAME AS Primarykey_Table,
PT.COLUMN_NAME AS Primarykey_Column,
C.CONSTRAINT_NAME AS Constraint_Name
FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS C
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK
ON C.CONSTRAINT_NAME = Fk.CONSTRAINT_NAME
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK
ON C.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME
INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU
ON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAME
INNER JOIN (SELECT
i1.TABLE_NAME,
i2.COLUMN_NAME
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS i1
INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE i2
ON i1.CONSTRAINT_NAME = i2.CONSTRAINT_NAME
WHERE i1.CONSTRAINT_TYPE = 'PRIMARY KEY') PT
ON PT.TABLE_NAME = PK.TABLE_NAME
WHERE PK.TABLE_NAME = 'HRM_tbEmployee'
AND PT.COLUMN_NAME = 'EmployeeID';