?
Solved

How to enable SSIS package to truncate the tables

Posted on 2014-02-11
5
Medium Priority
?
1,633 Views
Last Modified: 2016-02-10
I have an SSIS package that copies data from Oracle database to the SQL Server. It works fine but I would like it to truncate SQL Server tables prior to copying data. Is that possible to accomplish with SSIS? if so, how?
0
Comment
Question by:YZlat
  • 2
  • 2
5 Comments
 
LVL 66

Accepted Solution

by:
Jim Horn earned 1400 total points
ID: 39851048
Yes.  Prior to the data flow that pumps from Oracle to SQL, create an Execute SQL whose SQL code goes something like this:

TRUNCATE TABLE your_table_name

if we're talking more than one table, just repeat ...

TRUNCATE TABLE this_table
TRUNCATE TABLE that_table
0
 
LVL 35

Author Comment

by:YZlat
ID: 39851222
So I added "Execute SQL Task" to my Control Flow and linked it with Data Flow Task. Is that what you meant?
0
 
LVL 66

Expert Comment

by:Jim Horn
ID: 39851235
Replace 'linked it' with 'so the green arrow goes FROM the Execute SQL Task TO the Data Flow Task', then yes.
0
 
LVL 34

Assisted Solution

by:Brian Crowe
Brian Crowe earned 600 total points
ID: 39851288
Considerations for using TRUNCATE TABLE:

Will not work on a table referenced by a Foreign Key constraint.  You must remove the constraint before executing TRUNCATE TABLE and then replace it after.

The table cannot participate in an indexed view.

The table cannot be published as part of transactional or merge replication.

The user executing the TRUNCATE command must have ALTER privileges on the target table or the user must have EXECUTE privileges on a procedure that executes the TRUNCATE.
0
 
LVL 35

Author Closing Comment

by:YZlat
ID: 39851494
Thanks! It worked
0

Featured Post

Upgrade your Question Security!

Your question, your audience. Choose who sees your identity—and your question—with question security.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This month, Experts Exchange sat down with resident SQL expert, Jim Horn, for an in-depth look into the makings of a successful career in SQL.
This shares a stored procedure to retrieve permissions for a given user on the current database or across all databases on a server.
Using examples as well as descriptions, and references to Books Online, show the documentation available for datatypes, explain the available data types and show how data can be passed into and out of variables.
Viewers will learn how to use the UPDATE and DELETE statements to change or remove existing data from their tables. Make a table: Update a specific column given a specific row using the UPDATE statement: Remove a set of values using the DELETE s…
Suggested Courses

589 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question