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proceduresQueries.sql
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proceduresQueries.sql
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USE school
GO
/* Creating Add Student Procedure */
CREATE PROCEDURE ADD_P
@id int, @f_name varchar(30), @l_name varchar(30), @city varchar(50), @dep varchar(60),
@done int output
AS
begin
declare @err int = 0
begin transaction
if exists (select * from Student where id = @id )
begin
set @err = 1
end
else
begin
INSERT INTO Student VALUES (@id, @f_name, @l_name, @city, @dep)
set @err += @@error
end
if @err = 0
begin
commit transaction
set @done = 1
end
else
begin
rollback transaction
set @done = 0
end
end
GO
/* Creating Update Student Procedure */
CREATE PROCEDURE UPDATE_P
@id int, @f_name varchar(30), @l_name varchar(30), @city varchar(50), @dep varchar(60),
@done int output
AS
begin
declare @err int = 0
begin transaction
if not exists (select * from Student where id = @id )
begin
set @err = 1
end
else
begin
UPDATE Student SET firstName = @f_name, lastName = @l_name, city = @city, department = @dep
WHERE id = @id
set @err += @@error
end
if @err = 0
begin
commit transaction
set @done = 1
end
else
begin
rollback transaction
set @done = 0
end
end
GO
/* Creating Delete Student Procedure */
CREATE PROCEDURE DELETE_P
@id int,
@done int output
AS
begin
declare @err int = 0
begin transaction
if not exists (select * from Student where id = @id )
begin
set @err = 1
end
else
begin
DELETE FROM Student WHERE id = @id;
set @err += @@error
end
if @err = 0
begin
commit transaction
set @done = 1
end
else
begin
rollback transaction
set @done = 0
end
end
GO
select * from Student