Scripts

Technical Article

Detection of Broken Forign Key Relationship

Under special circumstances, it could happen that database contains "orphan" records. Data in dependant table exists without it's "parent" record in a master table. It could be caused by a bulk insert operation without CHECK_CONSTRAINTS option, or by disabling foreign key for a while or adding a foreign key to a table that already contains […]

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2002-03-27

250 reads

Technical Article

Script Generator for Triggers

This Stored Procedure creates the script of all existing triggersOptionally it creates the script to drop the triggers too.Triggers may belong to different owners. This procedure takes care of it.In SQLServer Enterprise Manager there is a facility to generate scripts forTables, Views, Stored Procedures etc.But it won't generate script for triggers unless we include the […]

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2002-03-27

2,744 reads

Technical Article

spAuditPasswords

This script is actually part of an article written about performing a simple password audit on SQL Server logins when you start to administor a new SQL Environment. The script will scan the sysxlogins table located in the master database for SQL Server logins with no passwords, passwords that are the same as the login […]

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2002-03-27

1,580 reads

Technical Article

Compare the structure & code of 2 databases

We often make changes in the test databases. But failure in making even the smallest change in the production database may lead to unwanted situations.This utility compares 2 databases.Parameters to be passed   @DB1  Database 1 (SysName)  @DB2  Databse 2 (SysName)  @ShowDifferentOnly see later (Bit)       Parameters 1, 2 may include server name as  well. […]

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2002-03-22

562 reads

Technical Article

Use DELETE On Many Tables With Foreign Keys

When deleting data from many tables, foreign key constraints can force you to specifically order your DELETE commands. This can take tons of time, especially if you have many tables.  Here's a technique I use to delete data in the correct order during the restaging of test databases.It makes use of the system stored procedure […]

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2002-03-22

1,643 reads

Technical Article

Get BCP out for all tables in a DB

           The script mentioned below will export data in all tables into textfiles to a physical path on your system using BCP utility from a Database. The sql commands used in this stored procedure are BCP utility,Identity function and temporary tables.    Here you required to give 4 input parameters, they […]

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2002-03-15

2,240 reads

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The Empty Aggregate

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Question of the Day

The Empty Aggregate

I have this table in a SQL Server 2025 database:

CREATE TABLE [dbo].[CustomerOrder]
(
[OrderID] [int] NULL,
[CustomerID] [int] NULL,
[total] [money] NULL
) ON [PRIMARY]
GO
What is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
       COUNT(total) AS count
FROM dbo.CustomerOrder;



See possible answers