mysql数据库的相关内容

问答 2019-12-23 来自：开发者社区

MySQL 选择题备份一个数据库下列各式正确的是（）

备份一个数据库下列各式正确的是（） A、mysqldump -u root -p dbname2 person > D:\backup.sql B、mysqldump -u root dbname2 person > D:\backup.sql C、mysqldump dbname2 person > D:\backup.sql D、mysqldump -u root -p d...

问答 2019-12-23 来自：开发者社区

MySQL 选择题连接远程MySQL数据库使用下列哪个格式( )

连接远程MySQL数据库使用下列哪个格式( ) A、MySQL -h 远程主机域名 -u root -p B、MySQL -u root -p C、MySQL -u -proot D、MySQL root -u -p

问答 2019-12-23 来自：开发者社区

MySQL 选择题切换数据库用以下哪一命令( )

切换数据库用以下哪一命令( ) A、SHOW B、TO C、USE D、 CHANGE

问答 2019-12-23 来自：开发者社区

MySQL 选择题关系数据库中，主键是( )

A、创建唯一的索引，允许空值 B、只允许以表中第一字段建立 C、允许有多个主键的 D、用于标识表中唯一的实体

问答 2019-12-23 来自：开发者社区

MySQL 选择题连接本地MySQL数据库下列哪些格式正确( )

连接本地MySQL数据库下列哪些格式正确( ) A、MySQL root -u B、MySQL -h localhost -u root -p C、MySQL -uroot -p D、MySQL root -u -p

问答 2019-12-23 来自：开发者社区

MySQL 选择题使用SQLyog创建数据库正确的是？（）

使用SQLyog创建数据库正确的是？（） A、可以在左侧数据库列表中,使用鼠标右键点击创建数据库. B、只能在左侧数据库列表中,使用鼠标右键点击创建数据库. C、可以在右侧Query选型卡中,编写sql语句,创建数据库. D、只能在右侧Query选型卡中,编写sql语句,创建数据库.

问答 2019-12-23 来自：开发者社区

MySQL 选择题查找数据库中所有的数据库用以下哪一项( )

查找数据库中所有的数据库用以下哪一项( ) A、SHOW DATABASE B、SHOW TABLES C、SHOW DATABASES D、SHOW TABLE

问答 2019-12-23 来自：开发者社区

MySQL 选择题Java中java.long.Long对应Mysql数据库中什么类型（）

Java中java.long.Long对应Mysql数据库中什么类型（） A、LONG B、VARCHAR C、FLOAT D、BIGINT

问答 2019-12-23 来自：开发者社区

MySQL判断题使用SQLyog备份数据库时，只能备份数据。使用SQLyog备份数据库时，只能备份

使用SQLyog备份数据库时，只能备份数据。使用SQLyog备份数据库时，只能备份数据。

问答 2019-12-23 来自：开发者社区

MySQL选择题以下哪个是关系型数据库（）

以下哪个是关系型数据库（） A、MySQL B、Redis C、NoSql D、HBase

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