Hi,

Looks like my question is related to this thread.

I am trying to delete some rows in parent table and related rows in child tables. I am using below sp, but throwing error. Please help me to update the sp so that I can delete all related tables rows.

error:

Msg 217, Level 16, State 1, Procedure spDeleteRows, Line 58

Maximum stored procedure, function, trigger, or view nesting level exceeded (limit 32).

CREATE Procedure spDeleteRows

/*

Recursive row delete procedure.

It deletes all rows in the table specified that conform to the criteria selected,

while also deleting any child/grandchild records and so on. This is designed to do the

same sort of thing as Access's cascade delete function. It first reads the sysforeignkeys

table to find any child tables, then deletes the soon-to-be orphan records from them using

recursive calls to this procedure. Once all child records are gone, the rows are deleted

from the selected table. It is designed at this time to be run at the command line. It could

also be used in code, but the printed output will not be available.

*/

(

@cTableName varchar(50), /* name of the table where rows are to be deleted */

@cCriteria nvarchar(1000), /* criteria used to delete the rows required */

@iRowsAffected int OUTPUT /* number of records affected by the delete */

)

As

set nocount on

declare @cTab varchar(255), /* name of the child table */

@cCol varchar(255), /* name of the linking field on the child table */

@cRefTab varchar(255), /* name of the parent table */

@cRefCol varchar(255), /* name of the linking field in the parent table */

@cFKName varchar(255), /* name of the foreign key */

@cSQL nvarchar(1000), /* query string passed to the sp_ExecuteSQL procedure */

@cChildCriteria nvarchar(1000), /* criteria to be used to delete

records from the child table */

@iChildRows int /* number of rows deleted from the child table */

/* declare the cursor containing the foreign key constraint information */

DECLARE cFKey CURSOR LOCAL FOR

SELECT SO1.name AS Tab,

SC1.name AS Col,

SO2.name AS RefTab,

SC2.name AS RefCol,

FO.name AS FKName

FROM dbo.sysforeignkeys FK

INNER JOIN dbo.syscolumns SC1 ON FK.fkeyid = SC1.id

AND FK.fkey = SC1.colid

INNER JOIN dbo.syscolumns SC2 ON FK.rkeyid = SC2.id

AND FK.rkey = SC2.colid

INNER JOIN dbo.sysobjects SO1 ON FK.fkeyid = SO1.id

INNER JOIN dbo.sysobjects SO2 ON FK.rkeyid = SO2.id

INNER JOIN dbo.sysobjects FO ON FK.constid = FO.id

WHERE SO2.Name = @cTableName

OPEN cFKey

FETCH NEXT FROM cFKey INTO @cTab, @cCol, @cRefTab, @cRefCol, @cFKName

WHILE @@FETCH_STATUS = 0

BEGIN

/* build the criteria to delete rows from the child table. As it uses the

criteria passed to this procedure, it gets progressively larger with

recursive calls */

SET @cChildCriteria = @cCol + ' in (SELECT [' + @cRefCol + '] FROM [' +

@cRefTab +'] WHERE ' + @cCriteria + ')'

print 'Deleting records from table ' + @cTab

/* call this procedure to delete the child rows */

EXEC spDeleteRows @cTab, @cChildCriteria, @iChildRows OUTPUT

FETCH NEXT FROM cFKey INTO @cTab, @cCol, @cRefTab, @cRefCol, @cFKName

END

Close cFKey

DeAllocate cFKey

/* finally delete the rows from this table and display the rows affected */

SET @cSQL = 'DELETE FROM [' + @cTableName + '] WHERE ' + @cCriteria

print @cSQL

EXEC sp_ExecuteSQL @cSQL

print 'Deleted ' + CONVERT(varchar, @@ROWCOUNT) + ' records from table ' + @cTableName

--delete a row, example

exec spDeleteRows 'X', 'field1 = ''234''', 0