bool InsertDB(JCR *jcr, char *cmd, const char *file=__FILE__, int line=__LINE__);
bool QueryDB(JCR *jcr, char *cmd, const char *file=__FILE__, int line=__LINE__);
int DeleteDB(JCR *jcr, char *cmd, const char *file=__FILE__, int line=__LINE__);
bool InsertDB(JCR *jcr, char *cmd, const char *file=__FILE__, int line=__LINE__);
bool QueryDB(JCR *jcr, char *cmd, const char *file=__FILE__, int line=__LINE__);
int DeleteDB(JCR *jcr, char *cmd, const char *file=__FILE__, int line=__LINE__);