oracle discoverer plus

Connect SQL plus to Oracle There are three methods for SQLPlus connection. 1. sqlplus/as sysdba Operating system authentication does not require the database server to start listener or the database server to be available. For example, if you want to start the database, you can use this method to access sqlplus and then start it using the startup command. 2. sqlplus username/password The listener proce

Oracle SQL * plus is a client tool that interacts with oracle. In SQL * plus, you can run the SQL * plus command and the SQL * plus statement.The DML, DDL, and DCL statements we usually call are SQL *

the contents of the SQL buffer to check if your modifications are correct. Example 3-8 Sql> L Example 3-8 results Example 3-8 results table name The changes you made are accurate. So how do we run this statement?3.4 '/' (RUN) commandYou certainly do not need to reenter this statement because this statement is already in the SQL buffer. Oracle provides the Slq*plus command '/' (run) to rerun the SQL stat

Tags: ras data root Rzsz prot Ace skip Add fixSilent Installation Reference: http://www.cnblogs.com/colmeluna/p/5686142.html In the actual installation: 1. Skip the second step to set the swap area space 2. No prompt to execute orainstroot.sh after installation is complete, only root.sh Build Library Reference: http://www.cnblogs.com/jyzhao/p/4635826.html In the actual build library: 1. Only the second step is performed and the library section is manually built 2. Modify file storage path/OPT/AP

Label:1. Enter "Sqlplus/nolog" on the command line to start the tool.2. Connect to Oracle Server conn username/password @ server connection string as connection identityThe client tool connects to the server based on the server connection string, and after the connection string, the client can operate the remote database as if it were native, so the configuration of the "Server connection string" is also called the local Network service configuration,

Isql*plus Introduction Isql*plus is a new feature offered from Oracle 9i and is a sql*plus Web form (Oracle 11g is not supported). is based on a three-tier structure. Its client, middle, and server can be located on the same machine or on a different machine. Isqlplus does

the SYS user and system user Oracle installation automatically generates SYS users and system users (1), sys user is superuser, has the highest privileges, has the SYSDBA role, has the permission to create database, the user's default password is Change_on_install (2), the system user is a management operator, and the permissions are large. With the Sysoper role, without the CREATE DATABASE permission, the default password is the manager (3generally s

Common commands and functions of Oracle SQL * plus, oracleplus Common commands: Connect to sqlplusRun cmd in the command line to enter. For example, to log on in sys mode, the command is as follows:(1). sqlplus "sys/zhb126 as sysdba" (2). sqlplus/nolog connect sys/zhb126 as sysdba (3). sqlplus scott/tiger Start a database instance Startup -- start the control file and data file while starting the database S

Call the Java program in Oracle, note: The Java method must be of type static if you want to use System.out/err output log in Java.Need to execute "call Dbms_java.set_output (5000);" In Oracle.First, Helloword1 Write Java program, also write in Sql/plus, and execute.Create or replace and compile Java source named Hello aspublic class Hello {static public string Message (string name) {Return "Hello," + name;

Department groupSelect Deptno, Max (ename), Max (SAL),Min (ename), Min (Sal),AVG (SAL),Count (*), COUNT (Job), COUNT (Distinct (job)),Sum (SAL) from the EMP group by DEPTNO;2) Department 30 maximum wage, minimum wage, total number, number of jobs, number of jobs and sum of wagesSelect Deptno, Max (ename), Max (SAL),Min (ename), Min (Sal),AVG (SAL),Count (*), COUNT (Job), COUNT (Distinct (job)),Sum (SAL) from the EMP group by DEPTNO have deptno=30;3.stddev returns the standard deviation of a set

You may be running an Oracle 10g Release 2 database server, but supporting some applications may have been written very early. Data tables created prior to Oracle 8i typically have a long data type to store large text. With the introduction of the large Object (LOB) data type, the long and long raw data types are discarded. If you are copying a data table that uses a Long data type, then using the CREATE t