Buscar dependencia de columna

Question

Cómo encontrar objetos que dependen de una determinada columna de tabla.

Ex:

Tabla: alguna_tabla

Cols: pk col1, col2, col3

Quiero encontrar todos los objetos que dependen de col1 (Pk)

Answer 1

Pruebe esta consulta, obtendrá algunos resultados que creo que está buscando.
Para filtrar, busque el valor en la columna c1.name o c2.name.
Para buscar todas las referencias a una determinada columna, utilice el c2.name para el nombre de la columna y la OBJECT_NAME (k.referenced_object_id) como la tabla que contiene la columna c2 :)

buena suerte!

    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' 

Answer 2

Pruebe esto: Esto le dará todos los nombres de los objetos que hacen referencia a Pk de su tabla.

select OBJECT_NAME(parent_object_id) from sys.foreign_keys where referenced_object_id = OBJECT_ID('YourTableName') 

Answer 3

Simplemente sustituya {0} y {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 

Answer 4

Esto debería hacer el truco:

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>'; 

fuente: http://www.mssqltips.com/sqlservertip/2999/different-ways-to-find-sql-server-object-dependencies/

o, para mostrar todas las dependencias de una tabla, utilice

EXEC sp_depends <TABLE_NAME> 

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

Answer 5

¡Esto debería funcionar!

 -- 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 

Answer 6

Encuentra dependencias de columna específicos

 
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%'; 

Answer 7

SQL proporcionada en el accepted answer above deben incluir una condición adicional unión entre sys.foreign_keys y sys.foreign_key_columns. Ver línea que comienza con "y" a continuación:

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 

Como referencia, aquí está todo el guión con la modificación se unen:

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' 

Answer 8

@ guión de NoFuchsGavin por lo general funciona muy bien, pero tiene algunas limitaciones debido a problemas con sysdepends (Consulte this blog post by Pinal Dave para obtener un ejemplo donde esto da resultados incorrectos).

Microsoft también sugieren que evite usar sysdepends en un nuevo trabajo de desarrollo.Por lo tanto, podemos usar sys.dm_sql_referencing_entities y sys.dm_sql_referenced_entities como se sugiere here.

Sin embargo, me he dado cuenta que esto a veces excluye referencias de columna debido a referenced_minor_name ser NULL. Por lo tanto, he agregado otra condición que puede presentar falsos positivos, pero asegura que las referencias de columna no se omitan del conjunto de resultados.

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 

Por encima de guión se basa en la respuesta de @ NoFuchsGavin y this blog post.

Me interesa saber si alguien ha logrado encontrar una mejor manera que no presente falsos negativos o positivos.