UPDATE world.city

SET Population = Population * 1 .1 

WHERE Countrycode IN (SELECT code FROM world. country WHERE continent = .’Asia’) 

哪组权限允许 Tom 执行此 SQL 语句?

 cluster . setInstanceOption('hoatl:3377',’memberWeight '40)

 cluster.set InstanceOpt ion( 'host2:3377',’ memberWeight'.30)

 cluster. satInstanceOption('hont3:3377’, ‘memberWeight'.40)

 cluster.setInstanceOption('host3:3377’.'exitStateAction',"ABORT SERVER") 

cluster.setInstanceOption(‘expelTimeout’,1) 

现在查看部分状态： 

永久性网络故障会隔离 host3. 

下列哪两项描述是正确的？

 +-------------------------------------------------------------------------------------------------------------------+

 IGrants for jsmith@% |

 +-------------------------------------------------------------------------------------------------------------------+

 |GRANT USAGE ON *.* TO ’jsmith'@ ‘%’ |

 |GRANT UPDATE (Name) ON ‘world’ ,’ country’ TO ’jsmith'@ ‘%’; | 

+-------------------------------------------------------------------------------------------------------------------+

 2 rows in set (0.00 sec)

 jsmith 可以执行哪两条 SQL 语句?

TRUNCATE test; 

BEGIN;

 INSERT INTO test (id, name) VALUES(1, "Hello") ; 

ROLLBACK; 

SELECT id FROM test; 

下列哪两个存储引擎在执行语句时会返回 test 表的非空记录集?

以下哪两项功能可用于此安装方法？

COUNT_HOST_BLOCKED_ERRORS :0

COUNT_ NAMEINFO_TRANSIENT_ ERRORS: 0

COUNT_NAMEINFO_ PERMANENT_ ERRORS: 0

COUNT_FORMAT_ERRORS: 0

COUNT_ ADDRINFO_TRANSIENT_ERRORS: 0

COUNT_ADDRINFO_PERMANENT_ ERRORS: 0

COUNT_ FCRDNS_ ERRORS :0

COUNT_ HOST_ ACL_ERRORS:0

COUNT _NO_ AUTH_ PLUGIN_ERRORS: 0

COUNT_AUTH_ PLUGIN_ ERRORS: 367

COUNT_HANDSHAKE_ERRORS :0

COUNT_PROXY_ USER_ ERRORS: 0

COUNT_ PROXY_ USER_ ACL_ERRORS: 0

COUNT_AUTHENTICATION_ERRORS:0

1 row in set (0.00 sec) .......

 集中 1 行(0.00 秒)

 以下哪条语句可确定错误的原因?  

 从名为 FACTORY . INVENTORY .的大型表中删除大量行。

 现在，您必须为 INVENTORY 表的表数据和相关索引数据重新组织物理存储，以诚少存储空间并提高 I/O 效率。

 下列哪个命令可以执行此操作?

shell> mysqldump --single-transaction -- flush-logs --master-data=2 --all-databases>backup_sunday. sql 

服务器使用-- flush- logs 选项执行哪些其他操作?

下列哪两项描述是正确的？

mysql> GRANT PROXY ON accounting@localhost TO ‘’@’%’; 

mysql> SELECT USER(), CURRENT_ USER(), @@proxy_ user;

 +-----------------------+------------------------------+-------------------------------+

 | USER () | CURRENT_ USER () | @@proxy_ user | 

+-----------------------+-------------------------------+-------------------------------+

 |rsmith@localhost I accounting@localhost | ''@'%' | 

+-----------------------+-------------------------------+-------------------------------+

 下列哪项描述是正确的?

myaq1> SELECT 由 FROM data locks LIMIT 1\G

 ....................... 1. COW .................................................... 

ENGINE: INNODE 

ENGINE LOCR 1D: 1200:146

 ENGINE TRANSACTION ID: 1200

 THREAD 1D: 45

 EVENT ID: 11

 OUJECT SCHEMA: mydb 

OBJECT NAME: mytable 1

 PARTITI ON NAME: NULL

 SUIPARTITION NAME: NULL 

OBJECT INSTANCE BEGIN: 1187933372502 03

 LOCK_TYPE:RECORD

 LOCK_MODE:X

 LOCR STATU8: GRANTED

 LOCK DATA: 1922,1922 

下列哪两项描述是正确的?

下列哪两个命令可以阻止使用被破解的帐户进行的新连接?

[mysqld]

User=mysql

datadir=/data/mysql

哪个方法将默认验证设置为用于验证用户帐户密码的 SHA-256 散列?