mysql data modeling tool

vertical layers: persistence layer, Business Entity layer, business rule layer, and interface interaction layer. The data access layer encapsulates operations on various databases, reports, and log files. Including: MySQL database interface, SQLite database interface, Excel File Operation encapsulation, txt Log File encapsulation, XML file access encapsulation, etc. The Business Entity layer defines and en

There are many ways to back up MySQL. The most common method is MySQLdump. Export the database to an SQL file. When restoring, sourcedb. SQL is executed cheerfully. Small There are many ways to back up MySQL. The most common method is MySQLdump. Export the database to an SQL file. When restoring, source db. SQL is executed happily. Small There are many ways to back up

Background of the "MySQL" "High Availability" purge_relay_logs tool:? In the MHA high-availability architecture to switch the steps, mainly by the individual instances of the relay log file compared to the old and new, select the latest relay log for the data in the group to append, as far as possible to ensure the security of the

The following articles mainly describe how to use the MySQL synchronization tool. If you are interested in the actual operations of the MySQL synchronization tool, you can click to view the following articles. I hope it will help you in this regard. 1. MySQL synchronization

Microsoft introduced a new tool to help MySQL users migrate their data to Microsoft's SQLServer database. This tool is called the SQL Server migration assistant (SSMA ). M Microsoft introduced a new tool to help MySQL users migra

1.Xtrabackup Tools Introduction: Xtrabackup is a tool for data backup of InnoDB, which supports online hot backup (without affecting data reading and writing during backup), is a good substitute for the commercial Backup tool InnoDB Hotbackup. Xtrabackup has two main tools: Xtrabackup and Innobackupex Xtrabackup can

Mysql optimization tool description, mysqlexplain I. Syntax {EXPLAIN | DESCRIBE | DESC} tbl_name [col_name | wild] {EXPLAIN | DESCRIBE | DESC} [explain_type] SELECT select_options explain_type: {EXTENDED | PARTITIONS} 2. Database preparation Table 1: DROP TABLE IF EXISTS `products`;SET @saved_cs_client = @@character_set_client;SET character_set_client = utf8;CREATE TABLE `products` ( `products_id` int(1

The basic usage of mysqldump is: shellmysqldump [OPTIONS] database [tables]. if you do not specify any table, the entire database will be exported. Run mysqldump -- help to obtain the option table supported by your mysqldump version. Note: If you run mysqldump without the -- quick or -- opt option, mysqldump will import the mysqldumpmysql management tool The basic usage of mysqldump is as follows: Shell> mysqldump [OPTIONS] database [tables]If you d

Label:... Resolve Edit Batch Workspace export Bin conversion mysqWrite in front: This blog describes how to use the Pentaho tool to quickly export database data to an Excel file, and how to import Excel file data into a database. Add: Using this tool does not require any code and is quick and easy to solve the actual p

Tags: what str is is multiple hardware query operation Cat SystemMysqlslap is a stress test tool from Mysql that can simulate a large number of clients operating the database at the same time, through the results of information to understand the performance status of the database A major work scenario for MYSQLSLAP is benchmarking the database server For example, we get a server, ready to be a database serv

spent on each step and the CPU and block Io, so that we can optimize the query statement more specifically. As you can see, because this is a full-table scan, the most time-consuming here is on sending data. In addition to this scenario, the following situations can also be time consuming:converting HEAP to MyISAM (when the query results are too large, put the results on disk),create TMP table (creating a temporary table, such as group storage Interm

Tags: read slow log Mon-binary third-party Linux div full SQL databaseThe slow query log of the MySQL database is an important tuning auxiliary log, but the log format of the MySQL default record is not friendly enough to read, which is determined by the MySQL logging rule, capturing one record, although the recorded information is sufficiently detailed, But if b

Tags: action start nal first open amp from Percona font1 Overview1.1 IntroductionXtrabackup is a MySQL database backup tool provided by Percona, officially described, which is the world's only one by one open source tools that enable hot provisioning of InnoDB and XTRADB databases.PXB (Percona xtrabackup) is a physical backup, is based on a copy file backup, Backup can be remotely operated, based on the

MySQL can certainly use its own dual-machine hot backup, but only one server can use dual-machine hot backup. Here we will talk about the hot backup tool xtrabackup Xtrabackup-1.5http: // download.csdn.net/detail/zzaihl/4104181 Xtrabackup is an open-source project of percona that supports hot backup of InnoDB, xtradb, and MyISAM(Locks the table) Official Website http://www.percona.com/docs/wiki/percon

[MySQL Notes] SQL optimization tool-explain the output format of the explain command If you have experience using MySQL, you may encounter slow SQL queries in your project. In some scenarios, you can easily locate the problem (for example, when a single table operation has slow SQL queries, check the SQL statement carefully and it is usually easy to locate the in

definition modifications used when creating the column. You can directly modify the character_set_server variable during the runtime to modify the default Server encoding. However, this is temporary and will be automatically restored after the client is shut down and restarted. To change the default Server encoding permanently, set the variable value in the [mysqld] area of my. ini or my. cnf configuration file, and then restart the Server: [mysqld]character_set_server=charset_name In the

original time. However, if you have MySQL Data, you can import a large amount of data into Hive. If you have hundreds of millions of data records plus complex SQL query conditions, it is a headache for MySQL, at this time, it is relatively easy for Hive, but there is no com

. *************************************************************************************** 　　　　 This condition belongs to the service not started: Open service: In the popup dos, enter the net start MySQL return; Shut down the service: under pop-up DOS, enter the net stop MySQL return. *************************************************************************************** * * Configure My.ini yourself, con

Mysql performance debugging tool profile, mysqlprofile I have been looking for mysql tools similar to Oracle 10046. I can see the time consumption of SQL Execution. I finally found a profile on the Internet. I think it is good to use it. Mysql> select version ();+ ----------- +| Version () |+ ----------- +| 5.6.16 |+ -

-- report-interval=4--verbosity=3--mysql-host=localhost--mysql-port=3306--mysql-socket=/data/3306/mysql.sock-- Mysql-user=root--mysql-password=123456--mysql-db=sbtest [Prepare | run | c