Storing as char but rather have varchar behavior


there char(2) - char(5) fields in our database (sql2008 sp2). when applications work data spaces stored in char columns creating difficulties. there way store data in char columns when retrieve them sql server returned them rtrimmed similar varchar behavior without adding views etc database. similar "set ansi_nulls" behavior nulls when set null equal null or so.

if database level setting set once awesome.

if not considering rebuild our tables varchar columns , deal performance impact.

thank you

gokhan varol

hi gokhan,

it seems not available trim data char data type varchar. this, may need convert data specified length manually:

declare @myvariable varchar(5) = 'abc'; declare @mynextvariable char(5) = 'abc'; select datalength(@myvariable) 'myvariable', datalength(@mynextvariable) 'mynextvariable',datalength(cast(@mynextvariable varchar(3))) 'convertlength'

if not acceptable way, may consider using varchar data type instead of char.


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SQL Server  >  SQL Server Database Engine



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