MySQL

Basic concepts: Logical backup and physical backup Online backup and offline backup Full backup, Incremental backup, and differential backup Local backup and remote backup Snapshot Backup Backup scheduling, compression, and

Other vendor type MySQL type Bool Tinyint Boolean Tinyint Character varying (M) Varchar (M) Fixed Decimal Float4 Float Float8 Double

MySQL supports a variety of system logs and provides comprehensive system errors, events, and business logic recording, tracking, diagnosis, and query functions! Log Type Information writtenLog The Error

MySQL binary logs are not only used for replicate \ audit, but can be used for backup and restoration like other RDBMS systems. The procedure is as follows: (Optional): backs up binary log files. Step 1: Start the server mysqld: make sure

The MySQL error log records the running status of the basic processes on the mysqd server. Command and configuration options: [--] log_error [= filen_ame] -- generate a new error log file when calling flush logs, and add the suffix "-old" to the

Recently, I want to use C # to connect to the database of the previous project (created using MySQL ).. Net connection to MySQL is actually not very complicated. There are a lot of methods available on the Internet. Below is a simple record of my

I installed MySQL 5.1 and used MySQL connector net 6.1.3 as a management tool. However, when the statement was just executed, it was reported that "the requested. NET Framework data could not be found to provideProgram. It may not be installed.

When an in statement is added to the SQL statement, the illegal mix of collations (gbk_chinese_ci, implicit) and (gb2312_chinese_ci, implicit) for Operation '=' error is returned. In the prompt, the character set is incorrect. First, I changed the

I have encountered some database problems during performance tests recently. I usually use slow query logs to find SQL statements with poor execution performance. However, I cannot find these SQL statements only, we need to help developers analyze

1.Index creation time: If a field in a table appears in select, filter, and sort conditions, it is worthwhile to create an index for this field.2. ForFuzzy searchNormal indexes cannot be satisfied and need to be createdFull-text index.3. if there

Source: http://www.sudone.com/linux/mysql_debug.htmlAuthor: Ayou I have been using the MySQL database software, which is stable and highly efficient. There are several possible causes for serious performance problems:1. The index is not created;2.

ArticleDirectory MySQL c api Programming Tutorial MySQL c api programming tutorialabout this tutorial This is a C Programming Tutorial for the MySQL database. It covers the basics of MySQL programming with the c API. You may also

Just today, I encountered a problem. The MySQL database's varchar data cannot use the max () function, which is not very familiar with MySQL. So I checked and found that these two methods are good. 1. Add 0 to the field that requires the max ()

The course requires a simple Ajax data access operation. jsp is used in the background, and MySQL is used in the database...   1. functions. js Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.

It's been useless for a long time...   Related software and drivers: MySQLDownload version: 4.1.11Http://dev.mysql.com/downloads/mysql/4.1.html JDBC driverDownload version: 3.1.8Http://dev.mysql.com/downloads/connector/j/3.1.html   Code

I. Overview: A MySQL cluster is an alternative. It is essentially a storage engine of a standard MySQL Server-named NDB or ndbcluster. This engine must be explicitly compiled into the mysqld server for use. NDB supports a wide range of

Name Description Benchmark (cont, expr) Repeatedly execute an expression is mainly used to test computation-intensive scalar expressions-similar to stress testing. For query, a single row and a single column are required.

Execute the Stored Procedure CallSp_name([Parameter[,...]) CallSp_name[()]   Delete Delete [low_priority] [quick] [ignore] FromTbl_name [WhereWhere_condition] [Order by...] [LimitRow_count]     Execute expression Calculation

RENAME TABLETbl_nameToNew_tbl_name[,Tbl_name2ToNew_tbl_name2]...       Alter {database | schema }[Db_name] {[Default] Character Set [=]Charset_name| [Default] collate [=]Collation_name}     Create {database | schema} [if not

MySQL storage engines include transaction and non-transaction types. MySQL supports local transactions-that is, each connection session can freely control the processing of transactions. MySQL uses the automatic transaction commit mode by default.