Varshini S
asked on
Dynamically create stored procedure using c#
I have the following input parameters in c#
string TableName , string[] PrimaryKeyColumns. Based on this parameter i need to create a stored procedure Dynamically using c#. Stored procedure using MERGE command to update or insert record in target table.
Here SOURCE table is a temp table (#TableName )
How to achieve this in C# ?
Below is the sample stored procedure. This stored procedure needs to be created Dynamically using c#
CREATE PROC usp_+TableName
AS
BEGIN
MERGE MYDB.dbo.TableName
USING #TableName ON SOURCE.PrimaryKeyColumn1=T
WHEN MATCHED THEN
UPDATE Set Target.column3=Source.colu
-- UPDATE
WHEN NOT MATCHED THEN
INSERT(column1,column2,col
VALUES(SOURCE.column1,SOUR
END
string TableName , string[] PrimaryKeyColumns. Based on this parameter i need to create a stored procedure Dynamically using c#. Stored procedure using MERGE command to update or insert record in target table.
Here SOURCE table is a temp table (#TableName )
How to achieve this in C# ?
Below is the sample stored procedure. This stored procedure needs to be created Dynamically using c#
CREATE PROC usp_+TableName
AS
BEGIN
MERGE MYDB.dbo.TableName
USING #TableName ON SOURCE.PrimaryKeyColumn1=T
WHEN MATCHED THEN
UPDATE Set Target.column3=Source.colu
-- UPDATE
WHEN NOT MATCHED THEN
INSERT(column1,column2,col
VALUES(SOURCE.column1,SOUR
END
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ste5an
Dynamically? This makes no sense... what is your use-case?
ASKER
Use-case
I have two databases DB1 and DB2. When i pass the table name and Primarykey columns to my C# application that will insert or update the records in DB2 table using MERGE command.
Both DB1 and DB2 table schemas are same. When new columns added in table the c# application drop the existing stored procedure and create the new stored procedure with new column mappings.
Another function in my c# application will execute that stored procedure.
I have two databases DB1 and DB2. When i pass the table name and Primarykey columns to my C# application that will insert or update the records in DB2 table using MERGE command.
Both DB1 and DB2 table schemas are same. When new columns added in table the c# application drop the existing stored procedure and create the new stored procedure with new column mappings.
Another function in my c# application will execute that stored procedure.
Are you using Entity Framework with code first approach to create these tables and store proc's in the first place? If that is the case then you should be able to drop and create new tables if there is any change in the model by using
Build Storeproc using Entity framework.
Database.SetInitilizer(new DropCreateDatabaseIfModelchanges<dbcontext>); Build Storeproc using Entity framework.
ASKER
I'm not using entity frame work. Is it possible to create a stored procedure without using
Entity Framework in c#?
Entity Framework in c#?
Yes what ever you want to do all can be handled in a single stored procedure.
ASKER
Okay. Is it possible to do that using c# ? Create stored procedure using c#
What happens when the new column is part of the primary key?
ASKER
New primary key column will be added in the string[] PrimaryKeyColumns.