SQL selection from one of four columns? - sql

Question

I have a database table with four columns:
Column 1 | Column 2 | Column 3 | Column 4
The value in each of those four columns will either be a price such as ($3.99) or will have the value 'Listed'.
I would like to know the best SQL query to find the following:
Get all rows where all four rows equal 'Listed'
Get all rows where some of the columns have prices and some have the value 'Listed'

Answer 1

Try this Query !
When all four rows equals to 'Listed' :
SELECT *
FROM [table name]
WHERE
Column1='Listed'
AND
Column2='Listed'
AND
Column3='Listed'
AND
Column4='Listed'
When some of the columns have prices and some have the value 'Listed' :
SELECT *
FROM [table name]
WHERE
(
Column1='Listed'
OR
Column2='Listed'
OR
Column3='Listed'
OR
Column4='Listed'
)
AND
(
Column1 LIKE '$%.%'
OR
Column2 LIKE '$%.%'
OR
Column3 LIKE '$%.%'
OR
Column4 LIKE '$%.%'
)

Answer 2

These are actually fairly simple queries
Select where all 4 columns are listed.
SELECT * FROM {table}
WHERE Column1='Listed' AND Column2='Listed' AND Column3='Listed' AND Column4='Listed'
Select where at least one column is listed and at least one column is a price(numeric)
SELECT * FROM {table}
WHERE (Column1='Listed' OR Column2='Listed' OR Column3='Listed' OR Column4='Listed')
AND (ISNUMERIC(Column1) OR ISNUMERIC(Column2) OR ISNUMERIC(Column3) OR ISNUMERIC(Column4))
Something like these should give you what you want, no guarantees though since different database engines use some slightly different SQL.

Answer 3

I think you should do something like this:
SELECT * FROM `testing` WHERE Col1='Listed' AND Col2='Listed' AND Col3='Listed' AND Col4='Listed'
And for the "OR" statement:
SELECT * FROM `testing` WHERE Col1='Listed' OR Col2='Listed' OR Col3='Listed' OR Col4='Listed'
Of cours you'll need to replace Col1, Col2, Col3 and Col4 with your Column names. Also change your table name.