how to connect to oracle database using sqlplus command

Troubleshooting of Logon failures when su switches to sqlplus in Oracle, oraclesqlplusProblem description:The oracle database in the production environment suddenly fails to log on, and the oracle database in the rlwrap production environment

[Oracle]sqlplus Start parameter description# su-oracle [Grid]Usage 1:sqlplus-h | -V-H[ELP]:Displays the syntax and usage of the Sql*plus command, and then returns control to the operating system.-v[ersion]:Displays the version number of the Sql*plus,

How to connect to the Oracle database and how to solve the fault-Summary highly recommended This article describes how to connect to Oracle Summary , Especially suitable Program Developers and Oracle cainiao How to configure to connect the client

Our usual DML, DDL, and DCL statements are sql*plus statements that, when executed, can be stored in an area of memory called SQL Buffer, and can only hold a recently executed SQL statement, and we can save SQL in SQL buffer Statements are modified

The DML, DDL, and DCL statements we usually call are SQL * plus statements. After they are executed, they can be stored in a memory area called SQL buffer, in addition, only one SQL statement can be saved recently. We can modify the SQL statement

Use SQL * Plus to connect to the database and sqlplus to connect to the database About SQL * Plus SQL * Plus is the primary command-line interface to your Oracle database. you use SQL * Plus to start up and shut down the database, set database

1. Oracle startup and Shutdown1. In a single-host environmentTo start or shut down the Oracle system, you must first switch to the Oracle user, as shown below:Su-Oracle A. Start the Oracle SystemOracle> svrmgrlSvrmgr> connect internalSvrmgr>

Use of oracle sqlplus 1. log on to sqlplus www.2cto.com oracle @ omu:> sqlplus/assysdba oracle @ omu:> sqlplus sys/oracle as sysdba 2 as a system administrator. connect to the database (You need to log on to sqlplus first) SQL> conn cgp_1/cgp_1 SQL>

frequently used: Sqlplus Username/password such as: normal user login Sqlplus Scott/tiger sqlplus username/[email protected]net_service_name such as: Sqlplus Scott/[email protected] Sqlplus Username/password as SYSDBA: Sqlplus sys/admin as

frequently used: Sqlplus Username/password such as: normal user login Sqlplus Scott/tiger sqlplus username/[email protected]net_service_name such as: Sqlplus Scott/[email protected] Sqlplus Username/password as SYSDBA: Sqlplus sys/admin as