MongoDB

If you don't understand the theory of replica set, poke the portal to read the author's last blog post.Since replica set is already part of MongoDB's advanced application, the basic knowledge of MongoDB below is not covered by the author, please

When dealing with databases, it is inevitable that data backup and recovery will occur. The following are the instructions used. I will leave them here for the time being. Data backup: E: \ mongodb-win32-x86_64-2.2.1 \ bin> export dump.exe -- db

Today, we will focus on the actual operation process of using the DB2 Configuration Wizard to configure parameters. We will mainly introduce the actual operation process by implementing its operation code, DB2 version 8 provides a tool for automatic

The following articles mainly describe the six keys for correctly executing DB2 commands. If you are curious about the execution of the six keys of DB2 commands, the following articles will unveil its secrets. The following is a detailed description

This article mainly describes the new feature of DB2 V9.7 index compression, Which is used correctly. DB2 V9.1 database introduces the row compression technology. When the data volume in our system is large, when I/O requirements exceed the capacity

This article mainly tells you about the basic knowledge of DB2 data types. DB2 built-in data types can be divided into numeric), string character string), and graphical string graphic string) and binary string) or datetime ). There is also a special

The following articles mainly describe the types of commonly used DB2 functions. I saw the types of commonly used DB2 functions on the relevant website two days ago. I think it is quite good. I will share them with you, the following is a detailed

This article describes several common commands for DB2 databases under AIX. DB2 is installed in the default/opt/IBM/db2/V9.5 directory and the instance is db2inst1. For your reference, I hope to enlighten you. 1. set-o viSimilar to the doskey

Dbdbs' backup and recovery are important for DBAs. In the online mode, you have enabled the rollback and recovery mode for DB2 backup, to RESTORE a table space set, run the RESTORE and ROLLFORWARD commands to RESTORE the table space set. For a DB2

The following articles mainly introduce the correct operation steps for connecting SQL Server to the DB2 Server. In practice, the interconnection between different database platforms is generally referred to as the heterogeneous database service,

The following article describes how to create a database Partition on a DB2 database. You can use the following command to create a db instance in the actual draft: db2icrt-s ESE-u db2admin, aaa123456-h anwenhao dbinstancename. Create database

I believe everyone knows about the DB2 character set. So where is the importance of the DB2 character set for the DB2 database? The following uses MySql and DB2 as an example to explain the character set of the database. The default character set is

There are many ways to delete DB2 data. The following describes the four most commonly used methods to delete DB2 data. If you have encountered any problems in deleting DB2 data, take a look. 1. Use the DELETE statement, namely: Delete from This

DB2 database uninstallationSome problems often occur. The following problems are analyzed and corresponding solutions are provided. If you have encountered similar problems when detaching A DB2 database, you may have learned a lot from it. (1) run

Guidance:Like Oracle databases,DB2 databaseThe optimizer is also used to analyze your SQL statements and generate the statements that are optimal.Execution Plan(Access Plan ).DB2The optimizer is actually a set of standard rules. Generally, we only

DB2 databaseAfter years of development and progress, many new versions have been developed, and these versions are better than one. DB2 databases have started from version 8.2, you can specify a locking policy for each DB2 database session. In

Db2 cmd command operation 1. Open the command line window # db2cmd 2. Open Control Center www.2cto.com # db2cmd db2cc 3. Open the command editor db2cmd db2ce ==== operate database commands ==== = 4. Start the database instance # db2start 5. Stop the

DB2 notes-Common commands visual database management software can use DbVisualizer, suitable for multiple databases. 1. a tablespace is actually a way to organize data files. Oracle organizes data through the tablespace database object. Before

The db2 tutorial is: Tips for improving INSERT performance in DB2 (1 ). INSERT Process OverviewFirst, let's take a quick look at the processing steps when inserting a row. Each step in these steps has the potential for optimization, which will be

DAYNAME returns a string of both upper and lower cases. For the day part of the parameter, the name of the day (for example, Friday) is expressed by week ).DAYOFWEEK returns the day of the week in the parameter, expressed by an integer ranging from 1