MDAC 2.5 SDK - ODBC Programmer's Reference
Appendix D: Data Types
The identifier for the time ODBC SQL data type is:
SQL_TYPE_TIME
The following table shows the ODBC C data types to which time SQL data may be converted. For an explanation of the columns and terms in the table, see "Converting Data from SQL to C Data Types."
| C type identifier | Test | *TargetValuePtr | *StrLen_or_IndPtr | SQLSTATE |
| SQL_C_CHAR | BufferLength > Character byte length
9 <= BufferLength <= Character byte length BufferLength < 9 |
Data Truncated data[a] Undefined |
Length of data in bytes Length of data in bytes Undefined |
n/a 01004 22003 |
| SQL_C_WCHAR | BufferLength > Character length 9 <= BufferLength <= Character length BufferLength < 9 |
Data Truncated data[a] Undefined |
Length of data in characters
Length of data in characters Undefined |
n/a 01004 22003 |
| SQL_C_BINARY | Byte length of data <= BufferLength
Byte length of data > BufferLength |
Data Undefined |
Length of data in bytes
Undefined |
n/a 22003 |
| SQL_C_TYPE_TIME | None[b] | Data | 6[d] | n/a |
| SQL_C_TYPE_TIMESTAMP | None[b] | Data[c] | 16[d] | n/a |
[a] The fractional seconds of the time are truncated.
[b] The value of BufferLength is ignored for this conversion. The driver assumes that the size of *TargetValuePtr is the size of the C data type.
[c] The date fields of the timestamp structure are set to the current date, and the fractional seconds field of the timestamp structure is set to zero.
[d] This is the size of the corresponding C data type.
When time SQL data is converted to character C data, the resulting string is in the "hh:mm:ss" format. This format is not affected by the Windows® country setting.