isc_encode_sql_date()
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Translates a date from the C struct tm
format to InterBase ISC_DATE
format prior to inserting or updating a DATE
value in a table.
Syntax
void isc_encode_sql_date(
void *tm_date,
ISC_DATE *ib_date);
Parameter | Type | Description |
---|---|---|
|
|
Pointer to a C |
|
|
Pointer to a four-byte |
Description
isc_encode_sql_date()
translates a date in a C time structure into an ISC_DATE
format internal to InterBase. This call is used prior to writing DATE
data to a table to guarantee that the date is in a format recognized by InterBase.
Use the isc_dsql
family of API calls to insert or update DATE
data from the ISC_DATE
structure in a table.
- Note: In InterBase 6 and later, the
DATE
data type is available only in dialect 3. It holds only date information, and does not include time information. In dialect 1, theTIMESTAMP
data type holds both date and time information and is exactly equivalent to theDATE
data type that was present in earlier versions of InterBase.
Example
The following code fragment illustrates declaring time structures and calling isc_encode_sql_date()
to translate a C time format into an InterBase date format prior to inserting or updating a table:
#include <time.h> #include <ibase.h> . . . struct tm hire_time; ISC_DATE hire_date; . . . /* Store date info into the tm struct here. */ . . . isc_encode_sql_date(&hire_time, &hire_date); /* Now use DSQL INSERT or UPDATE to move the date into a DATE column. */
Return value
None.