How to Pass null value to the Charater Max Length to the column of a table for datatypes like int,datetime etc?

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How to Pass null value to the Charater Max Length to the column of a tablefor datatypes like int,datetime etc?

With below Query I am getting the zero as Character Max Length to data types like int,datetime etc. Also how to pass if its decimal data type. Varchar works fine.

SQL

SELECT  COLUMN_NAME + " " + DATA_TYPE + "(" + CONVERT(varchar(10),isnull(CHARACTER_MAXIMUM_LENGTH,""))+")" + "How ;,"
FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = "PageAccessLog" ORDER BY ORDINAL_POSITION

Posted 18-Mar-15 18:53pm

Kandiya

Updated 18-Mar-15 19:49pm

George Jonsson

v4

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George Jonsson 19-Mar-15 1:50am

I tried to fix the formatting of your question, but I am not sure I got it right.

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Santosh Mishra · Answer 1 · 2015-03-22T09:28:00

Following query will put '' in braces:

SQL

SELECT  COLUMN_NAME + ' ' + DATA_TYPE + '(' + isnull(CONVERT(varchar(10),CHARACTER_MAXIMUM_LENGTH),'')+')' + 'How ;,'
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'PageAccessLog'
ORDER BY ORDINAL_POSITION

However if you want to avoid braces as well and handling special case for decimal:

SQL

SELECT  COLUMN_NAME + ' ' + DATA_TYPE +
case when CHARACTER_MAXIMUM_LENGTH is null then
    case when DATA_TYPE = 'Decimal' then '(' + CONVERT(varchar(10),Numeric_Precision) + ', ' + CONVERT(varchar(10),NUMERIC_SCALE) +')'
    else '' end
else '(' + isnull(CONVERT(varchar(10),CHARACTER_MAXIMUM_LENGTH),'')+')' end + ' How ;,'
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'PageAccessLog'
ORDER BY ORDINAL_POSITION