Solved

MS SQL Inserting Data Best Practices

Posted on 2014-03-07
4
385 Views
Last Modified: 2014-03-07
I'm trying to find some best practices for importing data into a SQL table.  Not just any SQL table, but an existing table that is used in a complex application.

What I mean by complex is that the table may have many constraints or a trigger or some other unforeseen complication.

I tried a few google searches, but I'm just finding results on how to do inserts.

I know that one cannot just blindly start importing data into a system because all kinds of havoc can be done without careful planning and data quality checks.

How does this apply to different databases such as MSSQL, MySQL, DB2 Oracle, etcetera
0
Comment
Question by:Jeff Darling
  • 2
  • 2
4 Comments
 
LVL 34

Accepted Solution

by:
Dan Craciun earned 500 total points
ID: 39912601
Make a (temporary) table(s) with your new data.
Then duplicate your production db into a staging one.

Then use
INSERT into staging_table
    SELECT fields FROM new_table

Open in new window


This will insert data checking for indexes and constraints.

Once you're convinced all is good, replace the production db with the staging one.

HTH,
Dan
0
 
LVL 12

Author Comment

by:Jeff Darling
ID: 39912753
Thanks Dan, thats a great idea.  that way Unit testing can be done.  It also is helpful to have a development environment.

as soon as I posted this, I tried a few more queries in Google and found some good best practices for SQL in general.  I can look at those and extrapolate from there.
0
 
LVL 12

Author Closing Comment

by:Jeff Darling
ID: 39912758
Thanks for the feedback and your patience.
0
 
LVL 34

Expert Comment

by:Dan Craciun
ID: 39912826
Glad I could help!
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

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

Ever needed a SQL 2008 Database replicated/mirrored/log shipped on another server but you can't take the downtime inflicted by initial snapshot or disconnect while T-logs are restored or mirror applied? You can use SQL Server Initialize from Backup…
This article shows gives you an overview on SQL Server 2016 row level security. You will also get to know the usages of row-level-security and how it works
Viewers will learn how to use the SELECT statement in SQL and will be exposed to the many uses the SELECT statement has.
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…

786 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