Edit

SQL to C: Time

  • Article

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/region setting.