Solved

Using a TSQL cursor to import data

Posted on 2011-03-08
2
196 Views
Last Modified: 2012-11-17
I have written an export routine in TSQL which imports data from a flat file database into a new database which contains different tables but links all the fields to the main data table.

Having been able to successfully import one data record and all of its linked fields (USING SELECT AND INSERT INTO statements, I need to automate the process using a cursor and import thousands of records. I would like to achieve the following:

Import from a select statement all of the main table data, which I believe would be loaded into the cursor. This holds the foreign key for linking the other tables

I then want to pass the record IDs from the above results and somehow link this with the next batch of inserts in the cursor so that all of the data is linked to the correct tables when running the cursor?

How would I go about this in TSQL?
0
Comment
Question by:mbs2000
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
2 Comments
 
LVL 15

Expert Comment

by:derekkromm
ID: 35069055
If you're able to link between the 2 tables, then a cursor may not be necessary.

First, you can do your insert into the main table.

Then, join your second table to the new main table based on the FK relationship. This will get you the ID information you require for the insert statement. Then you should have the necessary information to run the insert.
0
 
LVL 15

Accepted Solution

by:
derekkromm earned 500 total points
ID: 35069066
Slightly more detailed, say you have Q1 and Q2 as the 2 queries you're trying to populate.

First, you can just insert into table1 select * from Q1

Then, you would do something like

insert into table2 select table1.ID, Q2.* from Q2 inner join table1 on Q2.FKField = table1.FKField

Since there should be some sort of natural relationship already present
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

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

I am showing a way to read/import the excel data in table using SQL server 2005... Suppose there is an Excel file "Book1" at location "C:\temp" with column "First Name" and "Last Name". Now to import this Excel data into the table, we will use…
Introduction This article will provide a solution for an error that might occur installing a new SQL 2005 64-bit cluster. This article will assume that you are fully prepared to complete the installation and describes the error as it occurred durin…
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have. In this…
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …

724 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