Primarykey Fields

I'm try to get table columns name & primary key to generat Dlete/Insert
script to all my database tables..
I was able to get list of all user tables from sysobject and columns list
from syscolumns..
Now i need to know the primary key column (For delete Statments)..
How could i detrmine which column is primarykey or composite key'
thanxA couple of suggestions:
First, you may be trying to reinvent the wheel; have you looked at
using SQL-DMO or SCPTXFR to script out your database? May save you a
lot of time and energy.
Second, wherever possible, use the INFORMATION_SCHEMA views rather than
the system tables to query this type of information; look at the
following queries i nthe pubs database as an example:
SELECT *
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
WHERE TABLE_NAME = 'authors'
SELECT *
FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE
WHERE TABLE_NAME = 'authors'
Note that the identification of a primary key is a constraint on the
table, not a property of a column.
Of course, this only rings true for SQL Server 2000; no clue about
SS2005.
HTH,
Stu|||Islamegy (NULL_Islamegy_NULL@.yahoo.com) writes:
> I'm try to get table columns name & primary key to generat Dlete/Insert
> script to all my database tables..
> I was able to get list of all user tables from sysobject and columns list
> from syscolumns..
> Now i need to know the primary key column (For delete Statments)..
> How could i detrmine which column is primarykey or composite key'
> thanx
Here is a query that lists the PK columns for all tables in a database.
There is a restriction that the query as written will not cover keys
with more than 10 columns, but this is easy to address.
select o.name,
MAX(CASE ik.keyno WHEN 1 THEN c.name END) +
coalesce(MAX(CASE ik.keyno WHEN 2 THEN ', ' + c.name END), '') +
coalesce(MAX(CASE ik.keyno WHEN 3 THEN ', ' + c.name END), '') +
coalesce(MAX(CASE ik.keyno WHEN 4 THEN ', ' + c.name END), '') +
coalesce(MAX(CASE ik.keyno WHEN 5 THEN ', ' + c.name END), '') +
coalesce(MAX(CASE ik.keyno WHEN 6 THEN ', ' + c.name END), '') +
coalesce(MAX(CASE ik.keyno WHEN 7 THEN ', ' + c.name END), '') +
coalesce(MAX(CASE ik.keyno WHEN 8 THEN ', ' + c.name END), '') +
coalesce(MAX(CASE ik.keyno WHEN 9 THEN ', ' + c.name END), '') +
coalesce(MAX(CASE ik.keyno WHEN 10 THEN ', ' + c.name END), '')
from sysobjects o
join sysindexes i on i.id = o.id
join sysindexkeys ik on i.id = ik.id
and i.indid = ik.indid
join syscolumns c on ik.id = c.id
and ik.colid = c.colid
join sysobjects pk ON i.name = pk.name
AND o.id = pk.parent_obj
group by o.name
order by o.name
Erland Sommarskog, SQL Server MVP, esquel@.sommarskog.se
Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/pr...oads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodin...ions/books.mspx|||Thanx so much for this query..
"Erland Sommarskog" <esquel@.sommarskog.se> wrote in message
news:Xns976FD9D836B2FYazorman@.127.0.0.1...
> Islamegy (NULL_Islamegy_NULL@.yahoo.com) writes:
> Here is a query that lists the PK columns for all tables in a database.
> There is a restriction that the query as written will not cover keys
> with more than 10 columns, but this is easy to address.
> select o.name,
> MAX(CASE ik.keyno WHEN 1 THEN c.name END) +
> coalesce(MAX(CASE ik.keyno WHEN 2 THEN ', ' + c.name END), '') +
> coalesce(MAX(CASE ik.keyno WHEN 3 THEN ', ' + c.name END), '') +
> coalesce(MAX(CASE ik.keyno WHEN 4 THEN ', ' + c.name END), '') +
> coalesce(MAX(CASE ik.keyno WHEN 5 THEN ', ' + c.name END), '') +
> coalesce(MAX(CASE ik.keyno WHEN 6 THEN ', ' + c.name END), '') +
> coalesce(MAX(CASE ik.keyno WHEN 7 THEN ', ' + c.name END), '') +
> coalesce(MAX(CASE ik.keyno WHEN 8 THEN ', ' + c.name END), '') +
> coalesce(MAX(CASE ik.keyno WHEN 9 THEN ', ' + c.name END), '') +
> coalesce(MAX(CASE ik.keyno WHEN 10 THEN ', ' + c.name END), '')
> from sysobjects o
> join sysindexes i on i.id = o.id
> join sysindexkeys ik on i.id = ik.id
> and i.indid = ik.indid
> join syscolumns c on ik.id = c.id
> and ik.colid = c.colid
> join sysobjects pk ON i.name = pk.name
> AND o.id = pk.parent_obj
> group by o.name
> order by o.name
>
> --
> Erland Sommarskog, SQL Server MVP, esquel@.sommarskog.se
> Books Online for SQL Server 2005 at
> http://www.microsoft.com/technet/pr...oads/books.mspx
> Books Online for SQL Server 2000 at
> http://www.microsoft.com/sql/prodin...ions/books.mspx