Solved

Query to Create Primary Keys

Posted on 2013-11-16
3
287 Views
Last Modified: 2013-11-21
I am tasked to create a script to archive tables in a database.  The script should be reusable with minor tweaking.

I have created a dynamic query to create and populate the tables.

Now I need to add Primary Keys to the archive tables to match the primary keys on the non-archive tables.

I have created a #table that has 2 columns  (tablename and primarykey)

I am reading the #table in a while loop and running the following statement

select @vssql = 'ALTER TABLE ' + @vstablename + '_ARCHIVE' + ' ADD CONSTRAINT ' +  'pk_' + @PKColName + ' PRIMARY KEY ' +'(' + @PKColName + ')'

Everything goes OK, until I get to one of the 5 tables that has a composite primary key.

There are over 200 tables with a single column primary key and only 5 with a composite primary key.  

Can someone suggest a query that would handle both the single and composite primary keys in one pass.  

Thanks in advance.
0
Comment
Question by:sherbug1015
  • 2
3 Comments
 
LVL 23

Accepted Solution

by:
Rajkumar Gs earned 500 total points
Comment Utility
Add more columns in the temp table with column names like
tablename and primarykey1,primarykey2,...

Then check whether the parameters @PKColName2, @PKColName3,... has values. If there create dynamic queries accordingly

Raj
0
 

Author Comment

by:sherbug1015
Comment Utility
Raj

Any chance you can help me with the query.  I have attached a subset of the dataset

This is the query that compiles the datatset

insert into #tmppkrows

SELECT KU.table_name as tablename,column_name as primarykeycolumn1,ku.ordinal_position
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS AS TC
INNER JOIN
INFORMATION_SCHEMA.KEY_COLUMN_USAGE AS KU
ON TC.CONSTRAINT_TYPE = 'PRIMARY KEY' AND
TC.CONSTRAINT_NAME = KU.CONSTRAINT_NAME
ORDER BY KU.TABLE_NAME, KU.ORDINAL_POSITION;

 Instead of a flat dataset you are saying to create a pivoted table liked:

tablename   1  2   3

where 1,2,3 represent the ordinal position.

Can you help me with the pivoted table query.  I am not that familiar with them.

Thanks.
0
 
LVL 23

Expert Comment

by:Rajkumar Gs
Comment Utility
Hi

I appologize as I couldn't keep in touch with your question, as I am busy these days.

Hope everything went fine ?

Raj
0

Featured Post

Maximize Your Threat Intelligence Reporting

Reporting is one of the most important and least talked about aspects of a world-class threat intelligence program. Here’s how to do it right.

Join & Write a Comment

After restoring a Microsoft SQL Server database (.bak) from backup or attaching .mdf file, you may run into "Error '15023' User or role already exists in the current database" when you use the "User Mapping" SQL Management Studio functionality to al…
In this article I will describe the Copy Database Wizard method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

743 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

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now