/* These two include files are added by the preprocessor */ #include #include /* exec sql begin declare section */ /* VARSIZE */ struct varchar_uid { int len; char arr[200]; } uid; struct varchar_name { int len; char arr[200]; } name; short value; /* exec sql end declare section */ #include "sqlca.h" #define DBCP(x,y) strcpy(x.arr,y);x.len = strlen(x.arr) #define LENFIX(x) x.len=strlen(x.arr) #define STRFIX(x) x.arr[x.len]='\0' #define SQLCODE sqlca.sqlcode void db_error(char *msg) { sqlca.sqlerrm.sqlerrmc[sqlca.sqlerrm.sqlerrml] = '\0'; printf("%s: db error %s\n", msg, sqlca.sqlerrm.sqlerrmc); exit(1); } int main() { strcpy(uid.arr, "test/test"); LENFIX(uid); ECPGconnect("kom"); if (SQLCODE) db_error("connect"); strcpy(name.arr, "opt1"); LENFIX(name); ECPGdo(__LINE__, "declare cur cursor for select name , value from pace_test ", ECPGt_EOIT, ECPGt_EORT); if (SQLCODE) db_error("declare"); if (SQLCODE) db_error("open"); while (1) { ECPGdo(__LINE__, "fetch in cur ", ECPGt_EOIT, ECPGt_varchar, &name, 200, 0, sizeof(struct varchar_name), ECPGt_short, &value, 0, 0, sizeof(short), ECPGt_EORT); if (SQLCODE) break; STRFIX(name); printf("%s\t%d\n", name.arr, value); } if (SQLCODE < 0) db_error("fetch"); ECPGdo(__LINE__, "close cur ", ECPGt_EOIT, ECPGt_EORT); if (SQLCODE) db_error("close"); ECPGcommit(__LINE__); if (SQLCODE) db_error("commit"); return (0); }