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rman恢复方案和oracle异机恢复
sqlglm(msg_buffer, &buffer_size, &msg_length);
printf("Daemon error while connecting:\n");
printf("%.*s\n", msg_length, msg_buffer);
printf("Daemon quitting.\n");
exit(1);
}void
sql_error()
{
char msg_buffer[512];
int msg_length;
int buffer_size = 512;EXEC SQL WhENEVER SQLERROR CONTINUE;
sqlglm(msg_buffer, &buffer_size, &msg_length);
printf("Daemon error while executing:\n");
printf("%.*s\n", msg_length, msg_buffer);
printf("Daemon continuing.\n");
}
main()
{
EXEC SQL WhENEVER SQLERROR DO connect_error();
EXEC SQL CONNECT :uid;
printf("Daemon connected.\n");EXEC SQL WhENEVER SQLERROR DO sql_error();
printf("Daemon waiting...\n");
while (1) {
EXEC SQL EXECUTE
BEGIN
/*接收deamon发来的字符*/
:status := DBMS_PIPE.RECEIVE_MESSAGE('daemon');
IF :status = 0 ThEN
/*取出字符*/
DBMS_PIPE.UNPACK_MESSAGE(:command);
END IF;
END;
END-EXEC;
IF (status == 0)
{
command.arr[command.len] = '\0';
/*假如如果是stop,该进程就退出*/
IF (!strcmp((char *) command.arr, "STOP"))
{
printf("Daemon exiting.\n");
break;
}ELSE IF (!strcmp((char *) command.arr, "SYSTEM"))
{
EXEC SQL EXECUTE
BEGIN
DBMS_PIPE.UNPACK_MESSAGE(:return_name);
DBMS_PIPE.UNPACK_MESSAGE(:value);
END;
END-EXEC;
value.arr[value.len] = '\0';
printf("Will execute system command '%s'\n", value.arr);
/*运行os开始执行命令*/
status = system(value.arr);
EXEC SQL EXECUTE
BEGIN
DBMS_PIPE.PACK_MESSAGE('done');
DBMS_PIPE.PACK_MESSAGE(:status);
:status := DBMS_PIPE.SEND_MESSAGE(:return_name);
END;
END-EXEC;当前1/2页
关于数据库教程相关的教程网站知识今天我们就说到这里了,希望可以帮到大家。