Scripts

Technical Article

Optimized prime number generator

This a modification to the script given by Preethi.It generates prime numbers to the upper bound you specify.Modifications are using following facts from algebra:1. All prime numbers greater than 3 can be written in the form 6 * X +/- 1.2. Instead of checking the module for ALL numbers

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2003-09-25

402 reads

Technical Article

Get Column Lists script

This is a script like Column_Gitter by Rick Bolin (RickInMesa), it differs in the fact that it does not use cursors, it optionally adds the table name, it handles UDDT (User Defined Data Types) properly, and handles the new SQL Server 2000 datatypes.Usage: Open this script in QA, Change QA to the desired Database, Edit […]

(1)

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2003-09-24

725 reads

Technical Article

Compare the structure of two tables.

@strUser_nm is the owner of the table.  If the modifyname table does exist, it will alter it with the same structure as the sourcename table.  If the modifyname table exists, it compares the columns and add any that are missing.  The procedure passes an output parameter.  This is used to know if we need to […]

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2003-09-22

489 reads

Technical Article

Rename Foreign Key Constraints

This script will rename all FK constraint names in your database.  It will give them a user friendly name that can be used in error messages, etc. The FK contraint names will be formatted as FK_ChildTableName_ParentTableName_soid. Note: You first need to enable 'Allow modifications to be made directly to the system catalogs'. This can be […]

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2003-09-19

1,187 reads

Technical Article

Know all Database sizes in a server.

We can know how much space a database is occupied in hard disk by using sp_spaceused function. If we want to find all database sizes at a time, we have to provide use  and sp_spaceused for all databases. It takes some time to write all those T-sql statments. My script will find each and every […]

(2)

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2003-09-16

1,664 reads

Technical Article

A faster way to count rows in a table

SQL Server includes the COUNT function for counting a table's rows - however, it can be slow.  Although querying the "rows" column from the sysindexes table is faster, it is not always accurate (e.g., if a bulk load process has recently taken place).  In addition, you would not be able to use this method in […]

(3)

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2003-09-11

418 reads

Technical Article

Get contents of a directory/share to a table

Following on from todays QOD (on xp_cmdshell permissions) I thought this might be useful.Takes a directory or UNC path and returns the contents as a table.  eg:exec sp_getdir '\\mypc\c$'returns:datestring timestring directory   filesize    nameoffile---------- ---------- ----------- ----------- ----------------------18/07/2003 10:45      1           NULL        Documents and Settings18/07/2003 11:02    […]

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2003-09-04

268 reads

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Question of the Day

Distance Metric Algorithms

What are the distance metric algorithms that can be used in VECTOR_DISTANCE()?

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