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Define() establishes specific data definitions. This involves defining columns/fields and creating the tables/files with optional indexes.
Below is the code for Define():
/*
* Define()
*
* Create the tables
*/
void Define(void)
{
printf("DEFINE\n");
Create_CustomerMaster_Table();
Create_CustomerOrders_Table();
Create_OrderItems_Table();
Create_ItemMaster_Table();
}
/*
* Create_CustomerMaster_Table()
*
* Create the CustomerMaster
*/
void Create_CustomerMaster_Table(void)
{
CTSQLRET rc;
/* define table CustomerMaster */
printf("\ttable CustomerMaster\n");
if ((rc = ctsqlExecuteDirect(hCmd,
"CREATE TABLE custmast ( \
cm_custnumb CHAR(4), \
cm_custzipc CHAR(9), \
cm_custstat CHAR(2), \
cm_custrtng CHAR(1), \
cm_custname VARCHAR(47), \
cm_custaddr VARCHAR(47), \
cm_custcity VARCHAR(47))"
)) != CTSQLRET_OK)
Handle_Error("ctsqlExecuteDirect(CREATE TABLE)");
if ((rc = ctsqlExecuteDirect(hCmd,
"CREATE UNIQUE INDEX cm_custnumb_idx ON custmast (cm_custnumb)"
)) != CTSQLRET_OK)
Handle_Error("ctsqlExecuteDirect(CREATE INDEX)");
}
/*
* Create_CustomerOrders_Table()
*
* Create the table CustomerOrders
*/
void Create_CustomerOrders_Table(void)
{
CTSQLRET rc;
/* define table CustomerOrders */
printf("\ttable CustomerOrders\n");
if ((rc = ctsqlExecuteDirect(hCmd,
"CREATE TABLE custordr ( \
co_ordrdate DATE, \
co_promdate DATE, \
co_ordrnumb CHAR(6), \
co_custnumb CHAR(4))"
)) != CTSQLRET_OK)
Handle_Error("ctsqlExecuteDirect(CREATE TABLE)");
if ((rc = ctsqlExecuteDirect(hCmd,
"CREATE UNIQUE INDEX co_ordrnumb_idx ON custordr (co_ordrnumb)"
)) != CTSQLRET_OK)
Handle_Error("ctsqlExecuteDirect(CREATE INDEX)");
if ((rc = ctsqlExecuteDirect(hCmd,
"CREATE INDEX co_custnumb_idx ON custordr (co_custnumb)"
)) != CTSQLRET_OK)
Handle_Error("ctsqlExecuteDirect(CREATE INDEX)");
}
/*
* Create_OrderItems_Table()
*
* Create the table OrderItems
*/
void Create_OrderItems_Table(void)
{
CTSQLRET rc;
/* define table OrderItems */
printf("\ttable OrderItems\n");
if ((rc = ctsqlExecuteDirect(hCmd,
"CREATE TABLE ordritem ( \
oi_sequnumb SMALLINT, \
oi_quantity SMALLINT, \
oi_ordrnumb CHAR(6), \
oi_itemnumb CHAR(5))"
)) != CTSQLRET_OK)
Handle_Error("ctsqlExecuteDirect(CREATE TABLE)");
if ((rc = ctsqlExecuteDirect(hCmd,
"CREATE UNIQUE INDEX oi_ordrnumb_idx ON ordritem (oi_ordrnumb, oi_sequnumb)"
)) != CTSQLRET_OK)
Handle_Error("ctsqlExecuteDirect(CREATE INDEX)");
if ((rc = ctsqlExecuteDirect(hCmd,
"CREATE INDEX oi_itemnumb_idx ON ordritem (oi_itemnumb)"
)) != CTSQLRET_OK)
Handle_Error("ctsqlExecuteDirect(CREATE INDEX)");
}
/*
* Create_ItemMaster_Table()
*
* Create the table ItemMaster
*/
void Create_ItemMaster_Table(void)
{
CTSQLRET rc;
/* define table ItemMaster */
printf("\ttable ItemMaster\n");
if ((rc = ctsqlExecuteDirect(hCmd,
"CREATE TABLE itemmast ( \
im_itemwght INTEGER, \
im_itempric MONEY, \
im_itemnumb CHAR(5), \
im_itemdesc VARCHAR(47))"
)) != CTSQLRET_OK)
Handle_Error("ctsqlExecuteDirect(CREATE TABLE)");
if ((rc = ctsqlExecuteDirect(hCmd,
"CREATE UNIQUE INDEX im_itemnumb_idx ON itemmast (im_itemnumb)"
)) != CTSQLRET_OK)
Handle_Error("ctsqlExecuteDirect(CREATE INDEX)");
}
