Comparison with MSSQL to learn about MYSQL (5) -- Operator Security equals operator (
This operator and = operator perform the same comparison operation, but
When both operands are NULL, the return value is 1 instead of NULL;
When an operand is NULL, the return value is 0 instead of NULL.
The following are the execution results of select null
When both operands are NULL, the return value is 1 instead of N
This article mainly introduces the php implementation that can be used for mysql, mssql, and pg database operation classes. it encapsulates operations on mysql, mssql, and pg databases in the form of classes, which is of great practical value, for more information about database operations for
This article mainly introduces the php implementation that can be used for mysql, mssql, and pg database operation classes. it encapsulates operations on mysql, mssql, and pg databases in the form of classes, which is of great practical value, for more information about database operations for
Mysql Cluster 1: master-slave replication, using mysql-proxy for load balancing Mysql Cluster
There are many mysql Cluster architecture methods, and different architectures are implemented according to different requirements. Simply put,
Tags: identified server user login status Master AB replication (master-slave replication)you can have MySQL implement:1. Data backup (master server data is all synchronized to slave server)2. Can load balance reduce the pressure of the primary server3. True MySQL read and write separation Configuration MethodPrimary
I recently summarized some practical experience in converting mssql into a MySQL database, so I will share with you today. It mainly describes the differences between mssql and MySQL databases, and these will be constantly updated. I hope you can add more information.
1. MySQL
mysql| Security | Security database is the foundation of e-commerce, finance and ERP system, it usually keeps important business partners and
Customer information. Electronic data from most businesses, organizations, and government departments are kept in a variety of databases, and they
These databases are used to keep some personal data and to hold sensitive financial data. But the database is usually not like
The operating system and the network ar
1 MySQL supports enum, and set type, SQL Server does not support
2 MySQL does not support nchar,nvarchar,ntext type
3 The incremental statement of MySQL is auto_increment, while MSSQL is identity (1,1)
4 MSMs default values for the table creation statement are ((0)), while in My
1 MySQL supports enum, and set type, SQL Server does not support2 MySQL does not support nchar,nvarchar,ntext type3 MySQL increment statement is auto_increment, and MSSQL is identity (a)Mysql:create table Basic (ID int key auto_increment,name varchar (20));Mssql:create table Basic (ID int identity (), name varchar (20)
| 359 |TABLE_ID: -Flags:stmt_end_f|
|Host2-Bin.000001 | 359 |Xid| 1 | 390 | COMMIT /*xid=423*/ |
|Host2-Bin.000001 | 390 |Stop| 2 | 413 | |
+------------------+-----+----------------+-----------+-------------+----------------------------------------- --------------------------+
8Rowsinch Set(0.00Sec The following are some of the deletions are bin
Detailed steps for implementing mysql hot backup in linux (mysql master-slave replication) bitsCN.com
Role of the master and slave:
1. it can be used as a backup method.
2. read/write splitting to relieve the pressure on a database
MySQL master-slave backup principle:
Mysql
or SQL line threads.
changing Master
The line is impersonating is processing the change MASTER to statement.
Killing slave
The line is impersonating is processing the stop slave statement.
Opening Master Dump Table
This state occurs after the creating table from master dump.
Reading Master Dump table data
This state occurs after the opening Master dump table.
Rebuilding the index on Master dump table
This state occurs after r
PHP to import MSSQL data into the MySQL database first to understand how we import the MSSQL server data into the MySQL database, the first to install the MSSQL Server 2000 on your machine, but also to let your machine support php+ Apache+
I am close at the moment and have summarized some experience in converting mssql to a MySQL database. I will share my experience with you today. At the same time, we also hope that these will be constantly updated. I hope you can learn from it and hope it will help you in this regard.
1. MySQL supports enum, set, and SQL server.
2
1. Replication overview1.1. Replication-Resolved issuesData replication technology has some of the following features:(1) Data distribution(2) Load balancing (load Balancing)(3) Backup(4) High availability (Hi availability) and fault tolerance1.2. How replication worksFrom the top,
mysql|odbc| Data | conversion
Convert MySQL database to MSSQL database, or convert MSSQL database to MySQL database, which is often used in NT environment. Using MySQL ODBC is better, you can use the MSSQL7 management tools, you c
MySQL master-slave replication, mysql master-slave
Original article published on cu:
Reference:
This article involves the principle of MySQL master-slave replication and a simple verification of master-slave replication.I. MySQL m
MSSQL to MYSQL, gb2312 to UTF-8 no garbled solution, you can refer to the need for friends.
MSSQL to MYSQL, gb2312 to UTF-8 no garbled solution, you can refer to the need for friends.
Software used: MySQLMigrationTool
The system prompts that the data is too large to be imported. Modify the max_allowed_packet of the
First, MySQL master (called Master) from (called slave) Copy principle:
(1). master records data changes to the binary log (binary log), which is the Log-bin specified file (These records are called binary log events binary log event)(2). Slave copy Master's binary log events to its relay logs (relay log)(3). Slave redo the event in the relay log, changing the data that reflects it (the data repeats itself)
Attached schematic diagram:
Second, the
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