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【单项选择题】

You have enabled the Slow Query Log for a short period. When you process the Slow Query Log, you receive the following snip of output:<br /> Count: 100 Time=0 .22a (22s) Lock=0.00s (0s) Rows=0.0 (0),<br /> root[root] @localhost CREATE TABLE &#39;t1&#39; (id serial,id0 varchar(N) unique key,intcaoll INT (N) ,intco12 INT(N) ,intco13 INT(N) ,intco14 INT(N) ,intco15 INT(N) ,charcol1 VARVHAR(N) ,charcol2 VARCHAR(N) charcol3 VARCHAR (N) ,charcol4 VARVHAR(N) ,charcol5 VARCHAR(N) charcol6 VARCHAR (N) ,charcol7 VARVHAR(N) ,charcol8 VARCHAR(N) charcol9 VARCHAR (N) .charcol 10 VACHAR (N) )<br /> Count: 64000 Time-0.02s (1213s) Lock=0.00s (6s) Rows=1.0 (64000),<br /> root [root]@ localhost SELECT intocl1, intco12, intco13, intco14, intco15, intco16,intco17, intco18 ,intcol9, intcol10, charcol1, charcol2, charcol3, charcol4, charcol5, charcol6 ,charcol7, charcol8, charcol9, charcol10 FROM t1 WHERE id = &#39;s&#39; Count: 1 Time=0.02s (0s) Lock=0.00s (0s) Rows=1.0 (1)<br /> agent [agent] @localhost

A、A.CHEATE TABLE 't1' (id serial, id0 varchar (N) unique key, intcol1 INT (N) ,intcol2 INT (N), intcol3 INT(N) ,intcol4 INT(N), intcol5 INT(N), charool1 VARCHAR (N) ,charcol2 VARCHAR (N), charcol3 VARCHAR(N), charcol4 VARCHAR(N), charcol5 VARCHAR (N) ,charcol6 VARCHAR (N), charcol7 VARCHAR(N), charcol8 VARCHAR(N), charcol9 VARCHAR (N) ,charcol10 VARCHAR (N)

B、B.SELECT intcol1, intcol2, intcol3, intcol4, intcol5, intcol6, intcol7, intcol8, intcol9, Intcol10, intcol11, intcol12, intcol13, intcol14, intcol15, intcol16, intcol17, intcol18, intcol19, charcol10 FROM t1 WHERE id = 's'

C、C.SELECT Select_priv, Repl_client_priv, Show_db_priv, Super_priv, Process_priv FROM mysql.user WHERE CONCAT (user,'s', host) = CURRENT_USER()

D、D.SELECT intcol1, intcol2, intcol3, intcol4, intcol5, charcol1, charcol2, charcol3, charcol4, charcol5, charcol6, charcol7, charcol8, charcol9, charcol10 FROM t1 WHERE id = 's'

更多“You have enabled the Slow Query Log for a short period. When you process the Slow Query Log, you receive the following snip of output:<br /> Count: 100 Time=0 .22a (22s) Lock=0.00s (0s) Rows=0.0 (0),<br /> root[root] @localhost CREATE TABLE &#39;t1&#39; (id serial,id0 varchar(N) unique key,intcaoll INT (N) ,intco12 INT(N) ,intco13 INT(N) ,intco14 INT(N) ,intco15 INT(N) ,charcol1 VARVHAR(N) ,charcol2 VARCHAR(N) charcol3 VARCHAR (N) ,charcol4 VARVHAR(N) ,charcol5 VARCHAR(N) charcol6 VARCHAR (N) ,charcol7 VARVHAR(N) ,charcol8 VARCHAR(N) charcol9 VARCHAR (N) .charcol 10 VACHAR (N) )<br /> Count: 64000 Time-0.02s (1213s) Lock=0.00s (6s) Rows=1.0 (64000),<br /> root [root]@ localhost SELECT intocl1, intco12, intco13, intco14, intco15, intco16,intco17, intco18 ,intcol9, intcol10, charcol1, charcol2, charcol3, charcol4, charcol5, charcol6 ,charcol7, charcol8, charcol9, charcol10 FROM t1 WHERE id = &#39;s&#39; Count: 1 Time=0.02s (0s) Lock=0.00s (0s) Rows=1.0 (1)<br /> agent [agent] @localhost ”相关的问题
第1题

A、ALTER DATABASE ENABLE BLOCK CHANGE TRACKING  B、ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE   C、ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE   D、ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING  

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第2题

A、ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;  B、ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE <path>;  C、ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE <path>;  D、ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;  

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第3题

A、A. From Performance console, create a counter log.  B、B. From the properties of each volume, enable quotas.  C、C. From the Event Viewer console, create a new log view.  D、D. From the Local Security Policy, enable auditing for object access.  

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第6题

A、From the DHCP snap-in, reconcile the database.  B、From the folder that contains the DHCP database, run jetpack.exe dhcp.mdb temp.mdb.  C、From the properties of the dhcp.mdb file, enable the File is ready for archiving attribute.  D、From the properties of the dhcp.mdb file, enable the Compress contents to save disk space attribute.  

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第7题

A、From the DHCP snap-in, reconcile the database.  B、From the folder that contains the DHCP database, run jetpack.exe dhcp.mdb temp.mdb.  C、From the properties of the dhcp.mdb file, enable the File is ready for archiving attribute.  D、From the properties of the dhcp.mdb file, enable the Compress contents to save disk space attribute.  

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第8题

A、Enable the optimize for scalibity option.  B、Enable the optimize for consistency option.  C、Set the ordering method option to lowest cost.  D、Set the ordering method option to random order.  

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