Visual studio QuickReplace using Regular Exporession [Regex]

I don't have to persuade anybody that using regex saves a lot of time. Recently I was about to add 20 new parameters to the stored procedure updating record. The reason for that was the change in table definiton. I had to make following steps: 1) add new parameters to sp, 2) add this parameters to update statement 3) add this parameters to insert statement I could use copy and paste, because all three steps needed only some changes withing string with new columns. 1) The sample from input sql I had to write for sp Input params

@CategoryL3 nvarchar(50), @CategoryL4 nvarchar(50),

2) The sample from update statement

[CategoryL3]=@CategoryL3, [CategoryL4]=@CategoryL4,

3) The sample from insert statement

[CategoryL3], [CategoryL4] 

and then:

@CategoryL3, @CategoryL4 

Here is regex to find things from first sample:
[@]{.[^@ ]*} .[^@ ]*,
- in {} brackets we get the expression we want to extract from what has been found.
I'm looking for:
- @ at sing
- ".[^@ ]* "- all the signs (.*) until space (which is after star) that don't contain @ sign
- then there is space and anything thats between this space and comma, but again without @ sign (to avoid greedy results) .[^@ ]*


then in replace with text box I can put \1 which result with setting it to the values I enclosed with curly brackets.