SQL to C: Time

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
SQL-
STATE
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.