GitHub

SQL NULL Functions COALESCE, ISNULL, NULLIF, IS (NOT) NULL.sql

---Task: Display the full of customers in a single field by merging their first and lst names, ans add 10 bonus points to each customer’s score.
note

[Must Read] ISBLANK Function vs. ISNULL Function! Differences and Proper Usage

In Salesforce formulas, two functions, ISBLANK() and ISNULL(), are provided to determine NULL (blank) values. However, you might sometimes be unsure which one to use. This article explains the ...
Ars Technica

Settle an argument: SQL update with left join + isnull() vs inner join

I've been in an argument with one of our devs that took an update statement with an inner join and made it a left join (because inner was missing some records somehow in the left table - tableB in ...
Visual Studio Magazine

A CLR Alternative to the SQL Server ISNUMERIC Function: Listing 1

<Microsoft.SqlServer.Server.SqlFunction()> Public Shared Function fnIsNumeric(field As SqlString, sqltype As String) As SqlBoolean Dim result As New SqlBoolean(0) 'default to False Dim errorMessage As ...
GitHub

sqlserver_tsql_functions.md

In SQL Server, you can create functions that accept input parameters, allowing you to pass values to the function and perform operations based on those values. Example: Function to Get Employee ...