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 […]
2002-03-27
240 reads
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 […]
2002-03-27
2,736 reads
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 […]
2002-03-27
1,570 reads
2002-03-27
2,902 reads
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. […]
2002-03-22
548 reads
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 […]
2002-03-22
1,634 reads
Soundex is not particularly good, So here is a better name matching algorithm.Add an: ALTER TABLE Contacts ADD DoubleMetaphone AS dbo.DoubleMetaPhone(Contacts.Surname)and then you can use this for de-duplicating contact data.
2002-03-21
1,628 reads
Display disk space, unallocated space in every your database and write resutl in table USED_DISK for analisys
2002-03-19
2,140 reads
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 […]
2002-03-15
2,232 reads
Use this script to find tables, views, stored procedures that directly reference a column in the SELECT statement or in a join. This script will also return stored procedure and view names that have SELECT * in them when the specified column exists in the table referenced by that SELECT statement.
2002-03-15
1,075 reads
When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
In Part 1, we saw how ‘Vamana’ represents vectors as nodes, connects them with...
Comments posted to this topic are about the item Server-Level Table sizes
Comments posted to this topic are about the item Optional Parameter Plan Optimization in...
There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers