23

如何查找依赖于表格特定列的对象。

前任：

表：SomeTable

列：col1 pk，col2，col3

我想找到所有依赖 col1 (Pk) 的对象

4

9 回答 9

28

@NoFuchsGavin 的脚本通常效果很好，但由于存在问题而存在一些限制sysdepends（请参阅Pinal Dave的这篇博文，了解给出错误结果的示例）。

微软还建议您避免sysdepends在新的开发工作中使用。

因此，我们可以按照这里的建议使用sys.dm_sql_referencing_entitiesand 。sys.dm_sql_referenced_entities

但是我注意到，由于为referenced_minor_nameNULL，这有时会排除列引用。因此，我添加了另一个可能引入误报但确保不会从结果集中省略列引用的条件。

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 'SP' THEN 'Security policy'
        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 的回答和这篇博文。

我很想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。

于 2016-11-30T12:41:33.213 回答
15

试试这个查询，它会给你一些我认为你正在寻找的结果。
要进行过滤，请在 c1.name 或 c2.name 列中搜索值。
要查找对某个列的所有引用，请使用 c2.name 作为列名，使用 OBJECT_NAME(k.referenced_object_id) 作为包含 c2 列的表:)

祝你好运！


    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 = 'Column'
    and     OBJECT_NAME(k.referenced_object_id) = 'Table'
于 2012-08-02T07:13:41.320 回答
12

这应该工作！

        -- Search in All Objects
SELECT OBJECT_NAME(OBJECT_ID),definition
FROM sys.sql_modules
WHERE definition LIKE '%' + 'ColumnToBeSearched' + '%'
Order by OBJECT_NAME(OBJECT_ID)
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
于 2015-05-20T07:06:36.780 回答
11

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
于 2015-02-06T11:43:43.667 回答
7

上面接受的答案中提供的 sql应包括 sys.foreign_keys 和 sys.foreign_key_columns 之间的附加连接条件。请参见下面以“and”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，这里是修改后的整个脚本：

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'
于 2016-06-15T17:50:17.973 回答
3

试试这个：这将给出所有引用表的 Pk 的对象名称。

select  OBJECT_NAME(parent_object_id) from sys.foreign_keys where referenced_object_id = OBJECT_ID('YourTableName')
于 2012-08-02T04:54:33.983 回答
1

查找特定的列依赖项

选择对象名称（reference_id），
    参考数据库名称，
    referenced_schema_name,
    参考实体名称
FROM sys.sql_expression_dependencies
WHERE OBJECT_NAME(referenced_id) = 'table_name'
    AND OBJECT_DEFINITION(referencing_id) LIKE '%field_name%';
于 2016-05-21T09:16:30.680 回答
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，要显示表上的所有依赖项，请使用

EXEC sp_depends <TABLE_NAME>

来源：https ://msdn.microsoft.com/en-us/library/ms189487.aspx

于 2015-02-11T19:54:03.927 回答
0

它工作100％正常。尝试使用这个。它会给你额外的细节。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';
于 2018-08-08T06:02:22.513 回答