DROP TABLE IF EXISTS pre_common_syscache;
CREATE TABLE pre_common_syscache (
cname varchar(32) NOT NULL,
ctype tinyint(3) unsigned NOT NULL,
dateline int(10) unsigned NOT NULL,
`data` mediumblob NOT NULL,
PRIMARY KEY (cname)
)

DROP TABLE IF EXISTS pre_common_session;
CREATE TABLE pre_common_session (
  sid char(6) NOT NULL DEFAULT '',
  ip1 tinyint(3) unsigned NOT NULL DEFAULT '0',
  ip2 tinyint(3) unsigned NOT NULL DEFAULT '0',
  ip3 tinyint(3) unsigned NOT NULL DEFAULT '0',
  ip4 tinyint(3) unsigned NOT NULL DEFAULT '0',
  uid mediumint(8) unsigned NOT NULL DEFAULT '0',
  username char(15) NOT NULL DEFAULT '',
  groupid smallint(6) unsigned NOT NULL DEFAULT '0',
  invisible tinyint(1) NOT NULL DEFAULT '0',
  `action` tinyint(1) unsigned NOT NULL DEFAULT '0',
  lastactivity int(10) unsigned NOT NULL DEFAULT '0',
  lastolupdate int(10) unsigned NOT NULL DEFAULT '0',
  fid mediumint(8) unsigned NOT NULL DEFAULT '0',
  tid mediumint(8) unsigned NOT NULL DEFAULT '0',
  UNIQUE KEY sid (sid),
  KEY uid (uid)
)

DROP TABLE IF EXISTS pre_common_admincp_session;
CREATE TABLE pre_common_admincp_session (
  uid mediumint(8) unsigned NOT NULL DEFAULT '0',
  adminid smallint(6) unsigned NOT NULL DEFAULT '0',
  panel tinyint(1) NOT NULL DEFAULT '0',
  ip varchar(15) NOT NULL DEFAULT '',
  dateline int(10) unsigned NOT NULL DEFAULT '0',
  errorcount tinyint(1) NOT NULL DEFAULT '0',
  `storage` mediumtext NOT NULL,
  PRIMARY KEY (uid,panel)
)
```分享一下~