how to view database

Original link: MySQL View database related informationWhen using MySQL, you need to know the current database, such as the current database size, character set, user, and so on. Here's a summary of some commands for viewing database-related

SQL view database environment and some parametersSelectParent_obj fromsysobjectswhereName='fk_student_banjiid' --get the Appearance ID based on the foreign key nameSelect * fromsysobjectswhereXtype='U' --All table information under the current

Date: 2017-09-29 Editor: Byzqy This article records several T-SQL statements that query database information: View database Information View server name View instance Name Files: Sqlquery2.sql/*Description: Sqlquery2.sql

MySQL View database commandcommand to open a databasemysql> use MySQLDatabase changedCommands to view the databasemysql> show databases;View detailed structure of a data tableMysql> desc func;New DatabaseMysql> CREATE DATABASE School;Query OK, 1 row

View database objects in Mysql (Summary of SQL commands)View database objects in Mysql (Summary of SQL commands)The data objects include tables, views, triggers, and so on. (To View statistics, you must enter the information_schema database)For

MySQL View database objects (SQL command Summary)Data objects include tables, views, triggers, and so on (view statistics must go into the INFORMATION_SCHEMA database)For an example of viewing table-related information, proceed as follows1. Using

MySQL View database operation log the query log for MySQL logs all requests for MySQL databases. Whether or not these requests have been properly executed. The default file name is Hostname.log. By default, the MySQL query log is turned off.

1. View the database>db.stats (); { "DB":"Test", //Current Database"Collections": 3,//How many tables are in the current database"Objects": 4,//Current Database All tables how many data"avgobjsize": 51,//average size of each piece of

The database can be started in three phases: nomount, mount, and open. The database status can be viewed in three phases. Three phases of database startup 1. Create instance instancenomount in nomount phase. oracle mainly completes five things a.

Use shell scripts to view database load In normal times, you may feel confused when viewing database problems. If no one gives feedback on the problem, you will not take the initiative to find the problem direction. awr, ash searches for relevant

CREATE TABLE #Data (name varchar), row varchar (reserved), Data varchar (+), index_size varchar ( (+), unused varchar) DECLARE @name varchar (+) Declare cur cursor for select name from sysobjects where xtype= ' u ' ORDER by name Open cur fetch

2018.05.03 Database Class first sectionMySQL sever5.5 the last step in the installation process failed for unknown reasonThe first step opens after the marquee selection, select Next NextThe second step pops up the next dialog box and then chooses

    Database system is a kind of management data system, first design to the data, the data will be from the data managementHistoryLook at the development of the database system. After we reached the database stage, we began to discuss our course.

Generally we want to know if a database has been backed up, or when the last backup was made, there are two ways to see it:Method one, through the interface, check the database right-click Properties, the General option to see the last data and log

The 1.fn_listextendedproperty function can display an extended property of a single Database object or all objects in a database based on the object type. For example, you can return extended properties for all columns in a table or table.A. The

1. view the table space name and size. Select T. tablespace_name, round (sum (Bytes/(1024*1024), 0) ts_sizeFrom dba_tablespaces T, dba_data_files dWhere T. tablespace_name = D. tablespace_nameGroup by T. tablespace_name; 2. view the name and

Use Shell scripts to view database tablespace usage Check the table space in the database. You may have a lot of scripts in use. You can also read it and share an example of using shell scripts to check the table space usage.The script is as follows:

Query MySQL database/SQL statements for table-related information: SHOW DATABASES//lists the MySQL Server databases. SHOW TABLES [from db_name]//lists the database data tables. SHOW CREATE TABLES Tbl_name//Export the data table structure. SHOW TABLE

Show [Global | session] status [like ' xxx '];Global option to view all MySQL connection statusSession options, view current connection status, default session optionFlush status; You can reset many status values to zero.Get the total number of

One, increase the remote connection user1. Log in to the database with root privileges2. Add User: Grant all privileges on * * to "[email protected]' 192.168.1.% ' identified by ' 222 ' with GRANT option;Where 111 is the account and 222 is: password