If condition with is null in mysql

If condition with is null in mysql



1.What if null if null is null null null is null?

Description:Hi Hugo, I really liked the whole serie. The final question
reminded me about a NULL Puzzle, posted by Steve Kass on Jan 2003. I still
use it to show others the ...



2.MySQL IF Function

Description:This tutorial shows you how to use the MySQL IF function to
return a value based on a given condition.



3.Null (SQL) - Wikipedia, the free encyclopedia

Description:Null is a special marker used in Structured Query Language
(SQL) to indicate that a data value does not exist in the database.
Introduced by the creator of the ...



4.SQL SERVER- IF EXISTS(Select null from table) vs IF EXISTS ...

Description:21-02-2010 · 42 thoughts on " SQL SERVER- IF EXISTS(Select
null from table) vs IF EXISTS(Select 1 from table) "



5.sql - Check if a variable is null in plsql - Stack Overflow

Description:In PL/SQL you can't use operators such as '=' or '<>' to test
for NULL because all comparisons to NULL return NULL. To compare something
against NULL you need to use ...



6.sql - How do I check if a column is empty or null in mysql ...

Description:I have a column in a table which might contain null or empty
values. How do I check if a column is empty or null in the rows present in
a table.



7.MySQL IF Statement

Description:This tutorial shows you how to use MySQL IF statement to
execute a block of SQL code based on conditions.



8.SQL NULL Values - IS NULL and IS NOT NULL

Description:SQL NULL Values. If a column in a table is optional, we can
insert a new record or update an existing record without adding a value to
this column.



9.MySQL :: MySQL 5.0 Reference Manual :: 3.3.4.6 Working ...

Description:If you want to have NULL values presented last when doing an
ORDER BY, try this: SELECT * FROM my_table ORDER BY ISNULL(field), field [
ASC | DESC ]



10.SQL Server IF Conditions - BlackWasp

Description:IF Conditions. In the earlier articles of the tutorial we have
investigated the creation, population and querying of databases in varying
levels of detail.