C to SQL: Timestamp

The identifier for the timestamp ODBC C data type is:

SQL_C_TYPE_TIMESTAMP

The following table shows the ODBC SQL data types to which timestamp C data may be converted. For an explanation of the columns and terms in the table, see Converting Data from C to SQL Data Types.

SQL type identifier	Test	SQLSTATE
SQL_CHAR SQL_VARCHAR SQL_LONGVARCHAR	Column byte length >= Character byte length 19 <= Column byte length < Character byte length Column byte length < 19 Data value is not a valid timestamp	n/a 22001 22001 22008
SQL_WCHAR SQL_WVARCHAR SQL_WLONGVARCHAR	Column character length >= Character length of data 19 <= Column character length < Character length of data Column character length < 19 Data value is not a valid timestamp	n/a 22001 22001 22008
SQL_TYPE_DATE	Time fields are zero Time fields are nonzero Data value does not contain a valid date	n/a 22008 22007
SQL_TYPE_TIME	Fractional seconds fields are zero[a] Fractional seconds fields are nonzero[a] Data value does not contain a valid time	n/a 22008 22007
SQL_TYPE_TIMESTAMP	Fractional seconds fields are not truncated Fractional seconds fields are truncated Data value is not a valid timestamp	n/a 22008 22007

[a] The date fields of the timestamp structure are ignored.

For information about what values are valid in a SQL_C_TIMESTAMP structure, see C Data Types, earlier in this appendix.

When timestamp C data is converted to character SQL data, the resulting character data is in the "yyyy-mm-dd hh:mm:ss[.f...]" format.

The driver ignores the length/indicator value when converting data from the timestamp C data type and assumes that the size of the data buffer is the size of the timestamp C data type. The length/indicator value is passed in the StrLen_or_Ind argument in SQLPutData and in the buffer specified with the StrLen_or_IndPtr argument in SQLBindParameter. The data buffer is specified with the DataPtr argument in SQLPutData and the ParameterValuePtr argument in SQLBindParameter.