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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pgtypes_numeric.h>
EXEC SQL INCLUDE sqlda.h;
EXEC SQL INCLUDE ../regression;
static void warn(void)
{
fprintf(stderr, "Warning: At least one column was truncated\n");
}
/* Compatible handling of char array to retrieve varchar field to char array
should be fixed-length, blank-padded, then null-terminated.
Conforms to the ANSI Fixed Character type. */
int main() {
EXEC SQL WHENEVER SQLWARNING do warn();
EXEC SQL WHENEVER SQLERROR STOP;
const char *ppppp = "XXXXX";
int loopcount;
sqlda_t *sqlda = NULL;
EXEC SQL BEGIN DECLARE SECTION;
char shortstr[5];
char bigstr[11];
short shstr_ind = 0;
short bigstr_ind = 0;
EXEC SQL END DECLARE SECTION;
ECPGdebug(1, stderr);
EXEC SQL CONNECT TO REGRESSDB1;
EXEC SQL CREATE TABLE strdbase (strval varchar(10));
EXEC SQL INSERT INTO strdbase values ('');
EXEC SQL INSERT INTO strdbase values ('AB');
EXEC SQL INSERT INTO strdbase values ('ABCD');
EXEC SQL INSERT INTO strdbase values ('ABCDE');
EXEC SQL INSERT INTO strdbase values ('ABCDEF');
EXEC SQL INSERT INTO strdbase values ('ABCDEFGHIJ');
EXEC SQL declare C cursor for select strval, strval from strdbase;
EXEC SQL OPEN C;
EXEC SQL WHENEVER NOT FOUND DO BREAK;
printf("Full Str. : Short Ind.\n");
for (loopcount = 0; loopcount < 100; loopcount++) {
strncpy(shortstr, ppppp, sizeof shortstr);
memset(bigstr, 0, sizeof bigstr);
EXEC SQL FETCH C into :bigstr :bigstr_ind, :shortstr :shstr_ind;
printf("\"%s\": \"%s\" %d\n", bigstr, shortstr, shstr_ind);
}
EXEC SQL CLOSE C;
EXEC SQL DROP TABLE strdbase;
EXEC SQL COMMIT WORK;
/* SQLDA handling */
EXEC SQL WHENEVER SQLWARNING SQLPRINT;
EXEC SQL WHENEVER NOT FOUND STOP;
EXEC SQL PREPARE stmt1 FROM "SELECT 123::numeric(3,0), 't'::varchar(2)";
EXEC SQL DECLARE cur1 CURSOR FOR stmt1;
EXEC SQL OPEN cur1;
EXEC SQL FETCH NEXT FROM cur1 INTO DESCRIPTOR sqlda;
printf("\n-----------------\ntype : data\n");
for (int i = 0 ; i < sqlda->sqld ; i++)
{
sqlvar_t v = sqlda->sqlvar[i];
char *sqldata = v.sqldata;
if (v.sqltype == ECPGt_numeric)
sqldata =
PGTYPESnumeric_to_asc((numeric*) sqlda->sqlvar[i].sqldata, -1);
printf("%-8s: \"%s\"\n", v.sqlname.data, sqldata);
}
EXEC SQL CLOSE cur1;
EXEC SQL COMMIT WORK;
printf("\nGOOD-BYE!!\n\n");
EXEC SQL DISCONNECT ALL;
return 0;
}
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