Table TAB1 was created using the following statement: CREATE TABLE tab1 (c1 INT, c2 INT, c3 INT, c4 INT, c5 INT); If column C1 is unique and queries typically access columns C1 and C2 together, which statement(s) will create index(es) that will provide optimal query performance? （） CREATE UNIQUE INDEX xtab1 ON tab1 (c1) include (c2)。 CREATE UNIQUE INDEX xtab1 ON tab1 (c1); CREATE INDEX xtab2 ON tab1 (c3) INCLUDE (c2) 。 CREATE UNIQUE INDEX xtab1 ON tab1 (c2, c1)。 CREATE UNIQUE INDEX xtab1 ON tab1 (c2) INCLUDE (c1）。
根据产业组织学的（），规划能够影响市场主体的行为，行为决定市场运行的绩效，其中包括环境绩效。 结构行为绩效理论。 价格理论。 产业竞争与规制理论。 产业组织形态创新理论。
An administrator attends a management meeting to further explain a problem that occurred Several weeks ago. A quick review of existing log files reveals that all logs from that period are gone. Which logfile may be reviewed for specific event detail at this late date？（） clcornd.log。 clverify.log。 clstrhist.log。 cluster.mmddyyyy。
The server host1 has been set up as a backup system with the following /etc/exports: How can a second server regularly use this disk space?（） /usr/sbin/mkfs -s 8G -o nbpi=2048,frag=512 /dev/lv00 -b -l host1。 /usr/sbin/crnfsmnt -d /backups -l /backups host1 -R -X -v -S -b bg。 /usr/sbin/mknfsmnt -f /backups -d /backups -h host1 -a -S -t rw -w bg -g。 /usr/sbin/crfs -v nfs -g vg1 -A yes -p rw -m /backups -a logname=/dev/lv00。
发电机温度限制故障的触发条件是什么?
What is the default message level configured for IBM Tivoli Federated Identity Manager?（）
