test3.pgc
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:3k
- exec sql include header_test;
- exec sql type str is varchar[10];
- int
- main ()
- {
- typedef struct { long born; short age; } birthinfo;
- exec sql type birthinfo is struct { long born; short age; };
- exec sql begin declare section;
- struct personal_struct { str name;
- birthinfo birth;
- } personal;
- struct personal_indicator { int ind_name;
- birthinfo ind_birth;
- } ind_personal;
- int *ind_married = NULL;
- int children;
- int ind_children;
- str *married = NULL;
- char *wifesname="Petra";
- char *query="select name, born, age, married, children from meskes where name = :var1";
- exec sql end declare section;
- exec sql declare cur cursor for
- select name, born, age, married, children from meskes;
- char msg[128], command[128];
- FILE *dbgs;
- if ((dbgs = fopen("log", "w")) != NULL)
- ECPGdebug(1, dbgs);
- strcpy(msg, "connect");
- exec sql connect to unix:postgresql://localhost:5432/mm;
- strcpy(msg, "create");
- exec sql create table meskes(name char(8), born integer, age smallint, married date, children integer);
- strcpy(msg, "insert");
- exec sql insert into meskes(name, married, children) values (:wifesname, '19900404', 3);
- exec sql insert into meskes(name, born, age, married, children) values ('Michael', 19660117, 33, '19900404', 3);
- exec sql insert into meskes(name, born, age) values ('Carsten', 19910103, 8);
- exec sql insert into meskes(name, born, age) values ('Marc', 19930907, 5);
- exec sql insert into meskes(name, born, age) values ('Chris', 19970923, 1);
- strcpy(msg, "commit");
- exec sql commit;
- strcpy(msg, "open");
- exec sql open cur;
- exec sql whenever not found do break;
- while (1) {
- strcpy(msg, "fetch");
- exec sql fetch in cur into :personal:ind_personal, :married:ind_married, :children:ind_children;
- printf("%8.8s", personal.name.arr);
- if (ind_personal.ind_birth.born >= 0)
- printf(", born %d", personal.birth.born);
- if (ind_personal.ind_birth.age >= 0)
- printf(", age = %d", personal.birth.age);
- if (ind_married >= 0)
- printf(", married %10.10s", married->arr);
- if (ind_children >= 0)
- printf(", children = %d", children);
- putchar('n');
- free(married);
- married = NULL;
- }
- strcpy(msg, "close");
- exec sql close cur;
- /* and now the same query with prepare */
- exec sql prepare MM from "select name, born, age, married, children from meskes where name = ?";
- exec sql declare prep cursor for MM;
- strcpy(msg, "open");
- exec sql open prep using :wifesname;
- exec sql whenever not found do break;
- while (1) {
- strcpy(msg, "fetch");
- exec sql fetch in prep into :personal:ind_personal, :married:ind_married, :children:ind_children;
- printf("%8.8s", personal.name.arr);
- if (ind_personal.ind_birth.born >= 0)
- printf(", born %d", personal.birth.born);
- if (ind_personal.ind_birth.age >= 0)
- printf(", age = %d", personal.birth.age);
- if (ind_married >= 0)
- printf(", married %10.10s", married->arr);
- if (ind_children >= 0)
- printf(", children = %d", children);
- putchar('n');
- }
- free(married);
- strcpy(msg, "close");
- exec sql close prep;
- strcpy(msg, "drop");
- exec sql drop table meskes;
- strcpy(msg, "commit");
- exec sql commit;
- strcpy(msg, "disconnect");
- exec sql disconnect;
- if (dbgs != NULL)
- fclose(dbgs);
- return (0);
- }