Concurrent Execution of Stored Proc
0
I have an issue with the below stored proc when there is parallel execution. I am getting duplicates. How do I avoid the duplicates?
DECLARE @ReservedIds table(RowId int identity(1,1),seatid int, seatClass varchar(20))
--Fill Multiple Ids into @ReservedIds with a count
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
BEGIN TRANSACTION
IF EXISTS(SELECT * FROM [dbo].[AvailableSeatIds] WITH (UPDLOCK)
WHERE SeatId IN(select seatid from @ReservedIds)
AND [ReservationStatusId]=1 AND [IsChosen]=0)
Update ST Set ST.[IsChosen]=1,
ST.[ReservationStatusId] = @ReservedStatusId,
ST.[DateReserved] =@CurrentDate
FROM [dbo].[AvailableSeatIds] ST
WHERE ST.Id in(select seatid from @ReservedIds)
AND ST.HallId=@ActualHallId
AND ST.[IsChosen]=0;
COMMIT TRANSACTION;
sql-server concurrency isolation-level
edited 12 secs ago
LowlyDBA
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asked 5 mins ago
G YanG Yan
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0
I have an issue with the below stored proc when there is parallel execution. I am getting duplicates. How do I avoid the duplicates?
DECLARE @ReservedIds table(RowId int identity(1,1),seatid int, seatClass varchar(20))
--Fill Multiple Ids into @ReservedIds with a count
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
BEGIN TRANSACTION
IF EXISTS(SELECT * FROM [dbo].[AvailableSeatIds] WITH (UPDLOCK)
WHERE SeatId IN(select seatid from @ReservedIds)
AND [ReservationStatusId]=1 AND [IsChosen]=0)
Update ST Set ST.[IsChosen]=1,
ST.[ReservationStatusId] = @ReservedStatusId,
ST.[DateReserved] =@CurrentDate
FROM [dbo].[AvailableSeatIds] ST
WHERE ST.Id in(select seatid from @ReservedIds)
AND ST.HallId=@ActualHallId
AND ST.[IsChosen]=0;
COMMIT TRANSACTION;
sql-server concurrency isolation-level
edited 12 secs ago
LowlyDBA
6,98252542
asked 5 mins ago
G YanG Yan
1
New contributor
G Yan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
0
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0
I have an issue with the below stored proc when there is parallel execution. I am getting duplicates. How do I avoid the duplicates?
DECLARE @ReservedIds table(RowId int identity(1,1),seatid int, seatClass varchar(20))
--Fill Multiple Ids into @ReservedIds with a count
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
BEGIN TRANSACTION
IF EXISTS(SELECT * FROM [dbo].[AvailableSeatIds] WITH (UPDLOCK)
WHERE SeatId IN(select seatid from @ReservedIds)
AND [ReservationStatusId]=1 AND [IsChosen]=0)
Update ST Set ST.[IsChosen]=1,
ST.[ReservationStatusId] = @ReservedStatusId,
ST.[DateReserved] =@CurrentDate
FROM [dbo].[AvailableSeatIds] ST
WHERE ST.Id in(select seatid from @ReservedIds)
AND ST.HallId=@ActualHallId
AND ST.[IsChosen]=0;
COMMIT TRANSACTION;
sql-server concurrency isolation-level
edited 12 secs ago
LowlyDBA
6,98252542
asked 5 mins ago
G YanG Yan
1
New contributor
G Yan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have an issue with the below stored proc when there is parallel execution. I am getting duplicates. How do I avoid the duplicates?
DECLARE @ReservedIds table(RowId int identity(1,1),seatid int, seatClass varchar(20))
--Fill Multiple Ids into @ReservedIds with a count
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
BEGIN TRANSACTION
IF EXISTS(SELECT * FROM [dbo].[AvailableSeatIds] WITH (UPDLOCK)
WHERE SeatId IN(select seatid from @ReservedIds)
AND [ReservationStatusId]=1 AND [IsChosen]=0)
Update ST Set ST.[IsChosen]=1,
ST.[ReservationStatusId] = @ReservedStatusId,
ST.[DateReserved] =@CurrentDate
FROM [dbo].[AvailableSeatIds] ST
WHERE ST.Id in(select seatid from @ReservedIds)
AND ST.HallId=@ActualHallId
AND ST.[IsChosen]=0;
COMMIT TRANSACTION;
sql-server concurrency isolation-level
sql-server concurrency isolation-level
edited 12 secs ago
LowlyDBA
6,98252542
asked 5 mins ago
G YanG Yan
1
New contributor
G Yan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 12 secs ago
LowlyDBA
6,98252542
asked 5 mins ago
G YanG Yan
1
New contributor
G Yan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 12 secs ago
LowlyDBA
6,98252542
edited 12 secs ago
LowlyDBA
6,98252542
edited 12 secs ago
LowlyDBA
6,98252542
6,98252542
asked 5 mins ago
G YanG Yan
1
New contributor
G Yan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 5 mins ago
G YanG Yan
1
asked 5 mins ago
G YanG Yan
1
1
New contributor
G Yan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
G Yan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
G Yan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
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