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Update consecutive numbering with UPDATE statement – MSSQL

I want to update a table with consecutive numbering starting at 1. The update has a where clause so only results that meet the clause will be renumbered. Can I accomplish this efficiently without using a temp table?

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Find Duplicate Values with SQL Script

Let’s assume that data has been entered in a table and now you want to find if a table column have duplicated values. Here is an SQL script to join data from one table for comparison purpose. The table must have a primary key column (unique column) and the second column for comparison. Here is […]

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List all triggers in SQL Server database with table name and schema

Sample query: Here is and another version where you can the code of the trigger:

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FORMAT Function for Transact-SQL – T-SQL

Returns a value formatted with the specified format and optional culture in SQL Server 2016. Use the FORMAT function for locale-aware formatting of date/time and number values as strings. FORMAT ( value, format [, culture ] ) Return Types:  nvarchar or null The length of the return value is determined by the format. Remarks:   FORMAT returns […]

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T-SQL Script to Group Data by Minute

If you are doing a mass data insert into a table and you want to know how fast is inserting data. I have created a script that groups data by minute, based in a DateTime data type field.

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Converting UTC Time To Local Time in T-SQL – Sample

Sample 1: Sample with a table: Results (New York Time):

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T/SQL Splint String/Text

One common task performed in database applications is given a full name, how can this be split into the first name and last name.  In this article, three different methods are discussed to perform this task using three different functions in SQL Server.  It is assumed in this article that the full name is just […]

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T/SQL Generate Random Numbers

SQL Server has a built-in function that generates a random number, the RAND() mathematical function.  The RAND math function returns a random float value from 0 through 1.  It can take an optional seed parameter, which is an integer expression (tinyint, smallint or int) that gives the seed or start value. To use it, you […]

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