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Reference: String returned to Output Parameter from Stored Procedure is truncated

In PHP scripts, calling stored procedures from MS-SQL is necessary depending on a web application. In this case, if you are using MSSQL driver for PHP instead of the MSSQL module provided as a default driver, the following error message is sometimes seen.

01004 - [Microsoft][SQL Native Client]String data, right truncation

This is caused because the SELECT query does not specify fields explicitly like:

  1: SELECT
  2:     *
  3:   FROM
  4:     dbo.TableName

In order to avoid this error, just state field name explicitly like:

  1: SELECT
  2:     Field1,
  3:     Field2
  4:   FROM
  5:     dbo.TableName

Then, the error message above will no longer come out.