Using CONCAT() AS column_name to WHERE clause
#1054 – Unknown column ‘FullName’ in ‘where clause’
#1054 – Unknown column ‘FullName’ in ‘where clause’
I am performing an IF on a column and giving the result an alias. The CASE statement that uses the alias doe not work (error – sessionDate does not exist in field list). However, if I substitute the alias for a column name it does work. How do I get around this please?
I have a MySQL database with a table containing a list of dates. I need to find the first and last days in a gap in that table. They are the days off certain employee had in the last 30 days. I am using:
I would like to set up aliases for MySQL keywords for faster typing of repetitive (or any, really) queries. Example:
mysql rename column output query
I am by no means an MySQL expert, so I am looking for any help on this matter.
I’m trying to do something like this. But I get an unknown column error:
I’m creating a view that is using data that comes from the same table twice. As a result, same column names appear twice.
As a newbie to Postgresql (I’m moving over because I’m moving my site to heroku who only support it, I’m having to refactor some of my queries and code. Here’s a problem that I can’t quite understand the problem with:
I want to name the column alias based on the column value in mysql. Is that possible?