Oracle

[Email protected] ~]$ Sqlplus/as SYSDBASql*plus:release 11.2.0.1.0 Production on Wed Oct 8 09:57:50 2014Copyright (c) 1982, Oracle. All rights reserved.Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.1.0-64bit ProductionWith the

As far as I know, there are two scenarios when using OCI to connect to Oracle LNK2019: unresolved external symbol problems:I. Add the Oraocci11.lib (depending on the database version) without introducing additional dependencies, right-click Project,

1. using %TYPEIn many cases, aPL/SQL variable can be used to store data in a database table. In this case, the variable should have the same type as the table column. For example, the first_name column of the students table is of type VARCHAR2, and

Installing Oracle 12c on Windows 7 64-bit does not have a set character set, using the operating system default character set: we8mswin1252, modify the character set to: ZHS16GBK. Because the process is irreversible, you first need to back up the

Oracle MinuskeywordMinuskeyword in SQLThere is a minuskeyword in SQL that uses two SQL statements to find out the results of the first SQL statement, and then see if the results are in the results of the second SQL statement. If there is, then this

Environment:Production system is an online user 10K OLAP system (11g RAC two nodes), one day the user unit found that the scanner is slow.View monitoring,Node1,io is high, heart rate is very highImmediately proceed to analysis:1. Original production

-----------------------------------First, prefaceSecond, the environmentThird, Oracle Client InstallationIv. Oracle Client ConfigurationV. PL/SQL connection-----------------------------------First, prefacePL/SQL is a database language that is formed

Add annotations to tables, columns, and read annotations in Oracle1. Add notes to the table: Sql>comment on table name is ' table Comment ';2. Add comment to column: sql>comment on column table. Column is ' column comment ';3. Read the Table notes:

Oracle cursor example, with exception handling.DECLARE CURSORC_dl is SELECTID, NSRSBH, Wspzxh, ZXYY_DM, Hzrq, SWJG_DM, GXSJ fromt_guos_zxxxWHEREGxsj>BEGIN_GXSJ; C_row C_DL%ROWTYPE; BEGIN forC_rowinchC_DL LOOPBEGIN

The script requires a parameter, the name of the instance, to generate a configuration-dependent file, and a script statement to create the database for Sqlplus to run.The statement is placed in a file under the Run script directory with the file

 Server Directory Configuration1. Create server directory (1) Execute the following command under System User:CREATE OR REPLACE DIRECTORY Mail_file_dir  as '/mail_file/data/prod ';(2) Assign permissions to the created directory and

are found on the Internet, the final collection together, the URL has forgotten which is, sorry to create an instance part of this would like to write a script, first of all, the script experiment successfully put up again. Delete Oracle Instance 1.

In front of a machine, I put all the software installed again, the development environment reconfiguration (VS2003, vs2008, Oracle ...), it is not easy, during the encounter a lot of problems, but it is easy to solve. However, in the Oracle

materialized views for data replicationOne of the main functions of materialized views is for data replication, Oracle's advanced replication capabilities are divided into two parts, multi-master replication and materialized view replication.

How Oracle's DATE type is displayed depends on the Nls_date_format initialization parameterThe Nls_date_format parameter can be set at several levels1. Database level-If you want everyone to see data in some format, run Sql>alter system set nls_date_

#!/bin/bash#[email protected]#create tablespaceIf [$#-ne 2]; Thenecho "Usage: $ tablespace_name tablespace_size"Exit 1Fi#configure Oracle Env:about Oracle Envs, username and

11g new feature _ visible and invisible Index When you want to evaluate the impact of an index on your SQL query statement, when your database is 11 GB, you can quickly set the index to VISIBLE or INVISIBLE. In commendable cases, when the index is

Dynamic log display in Oracle 1. view the location of the log file; IND_USER @ PROD> select inst_id, name, value from v $ diag_info; INST_ID NAME VALUE--------------------------------------------------------------------------------1 Diag Enabled

Explain the differences between DELETE, TRUNCATE, and DROP in OraclePrefaceIn the past, when I was working on a project, I seldom paid attention to the details in the knowledge point. Today, I have the opportunity to differentiate several common

Oralce exists not exists in not in processing NULL, oralceexists 1. First, we will discuss the existence of NULL in and not in. The SQL statement is as follows: 1 select 1 result1 from dual where 1 not in (2, 3); 2 3 4 select 1 result2 from dual