Dependencies

External Article

Dependencies and References in SQL Server

  • Article

It is important for developers and DBAs to be able to determine the interdependencies of any database object. Perhaps you need to work out what process is accessing that view you want to alter, or maybe find out whether that table-type you wish to change is being used. What are all these dependencies? How do you work out which are relevant? Phil Factor explains.

2015-10-23

3,238 reads

External Article

Identifying Object Dependencies in SQL Server

  • Article

Is there a way to identify which objects are dependent on other objects within a SQL Server database? I need to modify the table structure to add new columns. However, before making any changes I want to make sure that I understand all the object dependencies. Is there a way in SQL Server 2008 to quickly identify all the object dependencies?

2009-06-26

3,798 reads

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Question of the Day

Adding new column with DEFAULT II

Which number did the two COUNT(*) return:

DROP TABLE IF EXISTS #tmp
CREATE TABLE #tmp (id INT NOT NULL)

INSERT INTO #tmp (id) 
SELECT gs.value
  FROM GENERATE_SERIES(1, 5) AS gs

ALTER TABLE #tmp ADD my_value INT NOT NULL CONSTRAINT df_tmp_my_value DEFAULT 1

SELECT COUNT(*)  FROM #tmp AS t WHERE my_value = 1

ALTER TABLE #tmp DROP CONSTRAINT df_tmp_my_value

ALTER TABLE #tmp ADD CONSTRAINT df_tmp_my_value DEFAULT 2 FOR my_value

SELECT COUNT(*)  FROM #tmp AS t WHERE my_value = 1

See possible answers