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30 sty 2012 · So I am trying to involve an if statement in my SQL query in my PHP code. Basically, I want to say "if $var is not 0, add the WHERE clause, but if $var is 0, don't add it". Code below, doesn't seem to be working.
21 sie 2024 · The IF statement is a control flow structure used to execute SQL code based on conditions, whereas the IF() function is a MySQL function used within queries to return a value based on whether a condition is true or false.
This tutorial shows you how to use MySQL IF statement to execute a block of SQL code based on a specified condition.
You can write a VBA code combining IF & AND to test two conditions. AND operator with the VBA IF to test multiple conditions, when you use it allows you to test two conditions simultaneously and get true if both of those conditions are true.
The AND and OR operators are used to filter records based on more than one condition: AND are TRUE. OR is TRUE. The NOT operator displays a record if the condition (s) is NOT TRUE. SELECT column1, column2, ... WHERE condition1 AND condition2 AND condition3 ...; SELECT column1, column2, ... WHERE condition1 OR condition2 OR condition3 ...;
The IF() function returns a value if a condition is TRUE, or another value if a condition is FALSE. Syntax
4 lut 2012 · I need help to convert the following Visual Basic statement into a PHP equivalent: If Not IsNumeric(siteid) Then dr = GetDataReader("SELECT siteid FROM nwsite WITH (NOLOCK) WHERE mac_address = '" & siteid & "'") If Not dr.HasRows Then Response.Write(sep & siteid & "=" & siteid) sep = "," End If If Not dr Is Nothing Then dr.Close() End If End If
