Question

hi have an category table

categoryId
Categoryname
Type 

these are column name’s so i need to show all categories where type=’card’ but General category on top here is my code

SELECT * FROM `tbl_Catagory` 
where CatagoryId=1 and type='Card' 
union select * from tbl_Catagory` 
where CatagoryId !=1 and type='Card' 
order by CatagoryId desc`

here i get desc order but general on bottom so what i need is general category on top with the remaining categories displayed in descending order based on categoryId

Answer 1

You don’t need UNION:

SELECT * 
FROM tbl_Catagory
WHERE type='Card'
ORDER BY (CatagoryId=1) DESC 
       , CatagoryId DESC

This works because True evaluates to 1 and False to 0. The first part of the ORDER BY makes sure that only those with CatagoryId=1 are ordered first. Then, all the rest which are subsequently ordered by their CategoryId in descending order.