Increase column value in SQL

[LinkZ]

Please bare with me here, i've been thrown in at the deep end at work and i'm a complete noob to SQL.

I have a SQL table with a column in which I want to increase all values in it by 1. Is there an SQL command that can do this?

Ive so far tried exporting it as a CSV & increasing all the values in Excel but when i try and import it back using phpmyadmin, I get the following error:

Invalid parameter for CSV import: Lines terminated by

Any ideas?

 

[LinkZ]

I think this should do it:

UPDATE TableName SET ColName = ColName + 1


Although I'd test it first with one row only... because I always do that before blanket updating!

UPDATE TableName SET ColName = ColName + 1 WHERE RowID = XYZ

That's spot on, worked a charm. Thanks very much