view all tables

I usually work in Oracle for a while, and I am confused about SQL Server. In order to avoid further blurring, I took some time today to sort out some of my commonly used SQL Server and send it out, I forgot to come and try again in a few days. There

Document directory Data Table portability Mysql Data Tables support six types: bdb, heap, isam, merge, MyISAM, and innobdb. These six types are divided into two categories: Transaction-safe, including bdb and InnoDB, And the other are in the

Oracle view users, user permissions, user tablespaces, user default tablespaces 1. view the relationship between users and default tablespaces. Select username, default_tablespace from dba_users; 2. view the table of the current user: Select

Oracle's data dictionary is one of the most important components of the database tutorial, which arises as the database is generated and changes as the database changes, Some tables and views are reflected under the SYS user. The data dictionary

First, users View the default table space for the current user Sql>select username,default_tablespace from User_users; View the role of the current user Sql>select * from User_role_privs; View system and table-level permissions for the current

Introduction of MARIADB (MySQL introduction skip) MARIADB database management System is a branch of MySQL, mainly by the open source community in the maintenance, the use of GPL licensed license MARIADB is fully compatible with MySQL, including

1. Start Service Windows DOS Command Window input directive: To see if a service starts: NET Help services Start MySQL service: net start MySQL Stop MySQL service: net stop MySQL Linux under Bash, enter the instructions: To view the status of

For the use of ALTER TABLE setunused, check the official documentation: alter_table::= column_clauses::= Drop_column_clause:: = SET Unused Clause Specify SET unused to mark one or more columns asunused. Specifying this clause does is not

First, download, here Use the green uncompressed version Http://mirror.services.wisc.edu/mysql/Downloads/MySQL-5.1/mysql-noinstall-5.1.32-win32.zip Second, the configuration of MySQL parameters 1, unzip the green version of the software to

I'm going to look at the database in Eclipse and operate it through CMD. Directory path is:/data/data/com.abc.oa It is more convenient to use the SqLite3 command directly in the ADB shell. 1. Open cmd 2. Direct input to adb shell 3. Enter

EXP Export Oracle database table: (as native administrator), refer tohttp://jiqinlin.iteye.com/blog/758469 Export TABLE: Exp username/password @localhost (IP address): Port number/Database instance name file= local address \ Want to generate an

1. Start HBase, go to the Bin folder under the HBase folder, and then execute the command: HBase Shell [Root@hadoop0 bin]# hbase shell hbase shell; Enter ' help ' for list of supported commands. Type "exit" to leave the HBase Shell Version 0.98.12.1

To manipulate commands in the Ubuntu system:Login: Mysql-uroot-pStart: Service MySQL StartSTOP: Service MySQL stopRestart: Service MySQL restartCreating database: Create database name charset = UTF8;Delete databases: drop database name;View all

MySQL study, this blog is about the current hot on the market of the relational database MySQL learning record.1, about the installation of MySQL, self-Baidu.2,sql:structure Query Language structured queries language.SQL classification:1,DDL (data

1. View all tables in the current databaseMysql> Show tables;2, create the table, the ID field is an integer unsigned, can not have a negative number and is the primary key (the primary key is unique), the engine is InnoDB, the character set is UTF8,

--01 MySQL database operation--Link Database- -Pmysql--No password displayed- - Pmysql--Exit the databaseQuit/exit/+ D--The SQL statement needs a semicolon at the end;--Show Database version versionsSelect version ();--Show timeSelect Now ();--View

This article will describe the basic operations of MySQL data. Pre-installation please self-BaiduOperating environment: Linux Ubuntu 16.04Command line connection The main use of command operation in the work, requires proficiency in writing

MySQL Administrator's user name and password: root rootCreate a database called MYDB1Create Database mydb1;show databases;Create a MYDB2 database that uses the Utf-8 character set.Create database mydb2 character set UTF8;Create a MYDB3 database that

Reference URL:1, http://www.runoob.com/mongodb/mongodb-intro.html2, http://www.runoob.com/python/python-mysql.html3, http://www.cnblogs.com/descusr/archive/2011/11/15/2249391.htmlFrom Pymongo Import * # Guide Package con = Connection (...) # link db

Input command Note:1 command ending sign semicolon;2 All the symbols are English half-width3 only if you encounter a semicolon MySQL will think of the end4 multiple commands separated by semicolonsViewing order: 1 View data show databases=>2 Enter