T-SQL's CHARINDEX() function is a useful for parsing out characters within a string. However, it only returns the first occurrence of a character. Oftentimes one needs to locate the Nth instance of a character or a space, which can be a complicated task in standard T-SQL. This function I wrote, imaginatively named CHARINDEX2(), allows one […]
2002-09-27
32,626 reads
IN a scenario where the user would like to retrieve the Count(*) from a table without any condition, in that case this query will workselect count(*) from 'Suppose product is the table,if the product table is light then its ok but if it contains a huge data, then this query can be used.select max(rowcnt) from […]
2002-09-26
350 reads
A very simple script that will first create a role (if it does not exist yet) and then grant full permissions on tables, views and stored procedures to the newly created role. Of course, you can add any filtering (i.e. grant permissions only for tables beginning with "abc") or grant partial permissions (SELECT or DELETE […]
2002-09-26
1,147 reads
The first part will create 2 stored procedures with self-explanatory names. The second is a standalone SQL that may be used in any stored procedure, script or DTS package.The generated string does not have any spaces and include only lower-case letters. To include anything else just change the boundaries for ASCII codes in the script.The […]
2002-09-26
577 reads
Every want to keep everyone from updating all your users database? If so this script will set each database to read only status.
2002-09-26
355 reads
The objective is to find circular references in a single table related to itself. The script deals with a sample table Skills that have a SkilGUID (primary key) field and a SkilParentGUID field which is a foreign key to the record's parent from the same table. The number of levels in the hierarchy is not […]
2002-09-24
1,113 reads
Quick and dirty script to generate the required SQL to reinstate permissions on each user object. This can be saved off for DR purposes.
2002-09-24
473 reads
Every want an easy way to set all database to DBO only and single user mode? Well here is a script to do that for you. This script is useful when you want to keep users out of the all the databases.
2002-09-23
1,337 reads
Here is a companion script to "Set All databases to DBO only and Single User Mode" that will turn off dbo and single user mode for all databases.
2002-09-23
538 reads
for both 7.0 and 2000. It generates log table and triggers for main table.Its avaliable for all dbs on current server.
2002-09-21
698 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