With the help of a number variable in a SQL statement

Hello

I am trying to use a variable in a sql statement, and I ran into problems when the variable is a number. The following line of code works if the variable is a string, but not if it is a number.

"SELECT PAGE 1 UUT_STATUS OF UNIT_UUT_RESULT WHERE UnitID = '" + Locals.LocalUnitID + "' ORDER BY DESC START_DATE_TIME.

Is there a difference in the use of single and double quotes and the sign for numbers variables +?

Thank you

Stuart

Jervin is almost correct in the post above.

While it is correct that numbers in SQL are not enclosed in single quotes ('), we still need the entire expression to a string.  If Locals.LocalUnitID is stored as a number to TestStand, you will need to cast to a string so that the string concatination works properly.

I believe that the correct form is as follows:

"SELECT PAGE 1 UUT_STATUS OF UNIT_UUT_RESULT WHERE UnitID ="+ Str (Locals.LocalUnitID) + 'ORDER BY DESC START_DATE_TIME'

Tags: NI Software

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