Scripts

Technical Article

Build DATELOOKUP table

This script creates a table named DATELOOKUP which is used for looking up date related values. Each record represents date related info about the date in the column dtDate. For example the iMonth column stores the integer value of the month of dtDate and sShortMonth stores the abbreviated name of that same month. Use this […]

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2004-12-13 (first published: )

232 reads

Technical Article

Where_Am_I

This SP takes a string to be searched as input parameter, loops through all tables, views, Sp-s in the database andreturns the name of the object it was found and number of occurences

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2004-12-10 (first published: )

689 reads

Technical Article

Finding first/last day of month by a date

This script finds the first day of previous, current and next month as well as last day of previous, current and next month.The calculation is based on the ISO date format which makes it independant of the date format used on the SQL Server.The calculation is performed from a date - it can be altered […]

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2004-12-02 (first published: )

276 reads

Technical Article

Script to List Missing Identity Numbers

I have a table named employees with an identity column named id. Also,last_name is a column in the table named employees. I created the employeestable and inserted 9 rows in it. If I do a select * from employees, theoutput looks like this:id last_name1 a2 b3 c4 d5 e6 f7 g8 h9 iThen I deleted […]

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2004-11-29 (first published: )

154 reads

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Question of the Day

ORDER BY alias

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) + 1
Which of the following queries produces the expected ordering and why? (Select all correct)

See possible answers