求救 装mysql时的错误

smll8402

[root@MagicLinux Desktop]# rpm -ivh mySQL-server-standard-4.1.22-0.rhel3.i386.rpm

出现下面信息就停止了

warning: MySQL-server-standard-4.1.22-0.rhel3.i386.rpm: V3 DSA signature: NOKEY, key ID 5072e1f5
error: Failed dependencies:
        perl(DBI) is needed by MySQL-server-standard-4.1.22-0.rhel3.i386

这是为什么??