Transaction handling in the deleting multiple tables.

Question

Hi 
I have a process to delete data from multiple tables. When we delete a specific table, do we get into
any locking issues on the other tables, as the complete logic is in the
TRANSACTION block, but only one "IF" condition will be executed at any time.
Is this good, or Do I need to break each "DELETE Table Tx" to a separate procedure?
---Example is below with wrapper and called SP sample syntax.
CREATE PROC Proc1
AS
BEGIN
EXEC Proc2 'T1', 'Date1'
EXEC Proc2 'T2', 'Date1'
EXEC Proc2 'T3', 'Date1'
END 
GO
CREATE PROC Proc2 (@Table_name VARCHAR(10), @Date DATETIME)
AS
Begin
BEGIN TRY
BEGIN TRAN T1
IF @Table_name  = T1
BEGIN
DELETE from T1 where t1.Datex <= @Date
END
IF @Table_name  = T2
BEGIN
DELETE from T2 where t2.Datet2 <= @Date
END
IF @Table_name  = T3
BEGIN
DELETE from T3 where t3.Datet3 <= @Date
END
COMMIT TRAN T1
END TRY
BEGIN CATCH
--On error 
ROLLBACK Tran T1
END CATCH
END
THanks,
Krishna

Answer 1

Kris_DB_Architect,
Why are you using multiple IFs. Just use this:
ALTER PROC Krishna_Forum @TableName VARCHAR(100),@BranchID INT
AS
DECLARE @SQLStmt VARCHAR(500)
SET @SQLStmt='DELETE '+@TableName +' WHERE BranchID='+CONVERT(VARCHAR(2),@BranchID)
EXEC (@SQLStmt)
EXEC Krishna_Forum 'AccBanalce',1
I have used your object only as described in another thread created by you. I hope this would be easily understandable.
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