mysql 命令下执行sql脚本 1.首先编写sql脚本,保存为:book.sql, 2.进入MySQL命令行 第一种方式:在未连接数据库的情况下,输入 mysql -h localhost -u root -p 123456 d:\book.sql 回车即可; 第二种方式:在已连接数据库的情况下,此时命令提示符为mysql,
mysql 命令下执行sql脚本1.首先编写sql脚本,保存为:book.sql,
2.进入MySQL命令行
第一种方式:在未连接数据库的情况下,输入 mysql -h localhost -u root -p 123456 第二种方式:在已连接数据库的情况下,此时命令提示符为mysql>,输入 source d:\book.sql 或者 \. d:\book.sql 回车即可.
3.以下是使用mysql>\. d:\book.sql 的运行结果

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Adding MySQL users through the PHP web interface can use MySQLi extensions. The steps are as follows: 1. Connect to the MySQL database and use the MySQLi extension. 2. Create a user, use the CREATEUSER statement, and use the PASSWORD() function to encrypt the password. 3. Prevent SQL injection and use the mysqli_real_escape_string() function to process user input. 4. Assign permissions to new users and use the GRANT statement.

MySQL'sBLOBissuitableforstoringbinarydatawithinarelationaldatabase,whileNoSQLoptionslikeMongoDB,Redis,andCassandraofferflexible,scalablesolutionsforunstructureddata.BLOBissimplerbutcanslowdownperformancewithlargedata;NoSQLprovidesbetterscalabilityand

ToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith

ToavoidcommonmistakeswithstringdatatypesinMySQL,understandstringtypenuances,choosetherighttype,andmanageencodingandcollationsettingseffectively.1)UseCHARforfixed-lengthstrings,VARCHARforvariable-length,andTEXT/BLOBforlargerdata.2)Setcorrectcharacters


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