SUBSTR returns a portion of char, beginning at character @StartPos, @Length characters long. If @StartPos is 0, it is treated as 1. If @StartPos is positive, Oracle counts from the beginning of char to find the first character. If @StartPos is negative, Oracle counts backwards from the end of char.
2003-07-02
302 reads
UDF that returns a DATETIME which is the concatination of the TIME portion of one DATETIME and the DATE portion of another.EXAMPLES:DECLARE @Date DATETIME, @Time DATETIMESET @Date = '7/1/03 16:00'SET @Time = '5/16/1999 9:30 AM'PRINT dbo.FN_AddDateTime(@Date,@Time )RETURNS: Jul 1 2003 9:30AMPRINT dbo.FN_AddDateTime(@Date,0)RETURNS: Jul 1 2003 12:00AM
2003-07-01
105 reads
This script is useful when want find out the list of the object on a given filegroup.
2003-07-01
253 reads
This function is based on a script by Tim Dietrich (tim@timdietrich.us) named format_height.sql. His function took what he called a decimal representation of a measurement and formatted it as feet and inches. In reality the input value was just a measurement formatted to look like a decimal number but it was not a true decimal […]
2003-06-27
105 reads
While we are exploring the possibility to build data-driven application whose GUI are all dynamically generated according to database objects' extended property, we find the system provided procedures: sp_addextendedproperty, sp_dropextendedproperty,sp_updateextendedproperty can add extended property to only one object each time, while fn_listextendedproperty can not let you search objects to display their extended property. […]
2003-06-27
505 reads
A proc which gets a list of all databases (Exluding "excluded" ones) and backs them up.The backup files are stored in the directory \DatabaseName\DatabaseName.bakUNC names are supported provided SQL Server has write access to the location.It deletes backups older than x (Current 3) days.This can be changed.Add a job to execute the script of proc […]
2003-06-26
720 reads
Sometimes you have to deal with denormalized database.And specially when links to another table are stored in oneof the fields as comma delimited list of IDs.This script shows how to make a single SELECT statement to fetch linked records
2003-06-23
322 reads
This script generates seril numbers (0, 1, 2, 3.4,,,)In this example I use 0 - 9999
2003-06-19
191 reads
This script will resize the data file of a passed in database name and filename by 10%. It can run in 3 modes.Resize, INFO, HELP. RESIZE is passed into parameter @Mode when we know the database name and file we wish to resize. INFO is passed in when we only know the database name and […]
2003-06-19
683 reads
This function takes a decimal representation of a height value and returns a properly formatted string value. For example, a height of 5 feet 9 inches, which would be passed in as the decimal 5.90, would be returned as 5'9". Similarly, a height of 4 […]
2003-06-18
1,762 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