获取database所有table名: (参考:http://stackoverflow.com/questions/2780284/how-to-get-all-table-names-from-a-database ) DatabaseMetaData md =conn.getMetaData(); ResultSet rs= md.getTables(null,null, "%",null);while(rs.next()) { System.out.println(rs.getString(3)); } 原理:Column3i...
DELIMITER // CREATE PROCEDURE GetAllTableRowCounts() BEGIN DECLARE done INT DEFAULT 0; DECLARE tableName CHAR(64); DECLARE rowCount BIGINT; DECLARE cur CURSOR FOR SELECT table_name FROM information_schema.tables WHERE table_schema = DATABASE(); DECLARE CONTINUE HANDLER FOR NOT FOUND SET done =...
下面是一个使用 Mermaind 语言表示的简化版类图。 DatabaseConnection+connect()+disconnect()QueryExecutor+executeQuery(query)+fetchResults()TableManager+getAllTables()+countRecords(tableName) 在此类图中,DatabaseConnection处理数据库连接,QueryExecutor执行查询并获取结果,而TableManager则负责管理表的操作。 8. 数...
password='your_password',db='your_database_name',charset='utf8mb4',cursorclass=pymysql.cursors.DictCursor)# 查询表名try:withconnection.cursor()ascursor:cursor.execute("SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'your_database_name'")tables=cursor.fetchall()# ...
String sql= "show tables"; PreparedStatement pstmt=newDbUtil().getConn().prepareStatement(sql); ResultSet rs=pstmt.executeQuery();while(rs.next()) { tables.add(rs.getString(1)); }returntables; }privateMap<String, Map<String, String>> getTableColumnName(String tableName)throwsException { ...
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MySQL数据库主从同步,你get到了吗? 1.前言 数据库的主从复制想必大家不是很陌生了,而且我看也有文章介绍讲解。不要傻傻的认为主从复制就是主从同步。今天来学习数据库主从同步的原理及过程,数据库主要是用来存储WEB数据,在企业当中是极为重要的,下面一起来看下。
shell>./sysbench --mysql-db=lvs_test --db-driver=mysql --mysql-host=10.186.17.150 \ --mysql-port=8066 --mysql-table-engine=innodb --mysql-user=action \ --oltp_auto_inc=off --mysql-password=action --test=../db/insert.lua \ --oltp_tables_count=1 --oltp-table-size=10000 prepare ...
Step 1: Generate a List of Drop Table Statements For All Tables You can get a list of all tables in yourMySQLdatabase by running this query: SELECTtable_nameFROMinformation_schema.tablesWHEREtable_schema='database_name'; Replace the word “database_name” with the name of your database. ...
(不会setnames 、忽略key、添加锁)减小了生成文件的体积-d:备份表结构-t :备份表内容-F:刷新切割binlog日志(分段备份导入)--master-data :增加binlog日志文件名及对应的位置点;#注意需要开启log_binON|查看-e"show variables;"|grep log_bin-x :锁定所有表 #--lock-all-tables-l :锁定指定表--single-...