Function selectDb

app/redis-6.2.6/src/db.c:551–556

}

int selectDb(client *c, int id) {
    if (id < 0 || id >= server.dbnum)
        return C_ERR;
    c->db = &server.db[id];
    return C_OK;
}

long long dbTotalServerKeyCount() {
    long long total = 0;