Oracle

Oracle Financial Services Application (OFSA) technical platform: includes Oracle Warehouse Builder Data Warehouse building tool, Oracle8i Database, Oracle Express multi-dimensional database, Common Warehouse Metadata Common Data Warehouse Metadata

Common SQL * PLUS commands:Conn system/rr: log on to the databaseDisc: disconnectShow user: displays the current userExit: exit the system.Clear: clear screenStart d: \ aa. SQL [arg1 arg2 arg3]: run a script and specify parameters. Replace the

I. experiment environmentDb_A: 192.168.0.3 db_ B: 192.168.0.4Db_A is the production database, and db_ B is the backup database (not running). the environments of the two databases are identical.Ii. Operations1. db_A operationsGrade 0 rman backup on

Oracle job timer execution interval learning summary Oracle job timer execution interval is also the key settings of the timer job, in this setting, has not been mastered, always do not know how to write, the following is a summary of the usage of

Oracle built-in function analysis SQL single record function 1. ASCII returns the decimal number corresponding to the specified character. SQL> select ascii ('A') A, ascii ('A') A, ascii ('0') zero, ascii ('') space from dual; a zero space ---------

Oracle architecture database structure oracle database consists of two parts: database and instance database: a series of physical files that specifically store data and related objects. Instance: refers to a series of operating system processes and

Oracle Database Import and Export, ORA-39083; ORA-00439 error solution ORA-39083: Object type TABLE: "TEST ". "TEST_SS_NAME" failed to create with error: ORA-00439: feature not enabled: Deferred Segment Creation error resolution and resolution;

1. The website system of the Environment Company uses IIS + Oracle, but a system of the company uses Sqlserver 2000, but the data needs to be made into reports and put on the website. To simplify programming, useOracle is A transparent gateway that

Oracle grouping and grouping functions 1. summation and averaging 1. What is a group function is the multi-row function we mentioned earlier. It is mainly used for table operations. Because only tables have multiple rows of data. The following uses

Data Guard log transmission optimization ------ network transmission optimization practices (I) adequate network bandwidth is the basis for log transmission optimization www.2cto.com experience value budget formula: bandwidth demand = log generation/

Oracle common errors (ORA-01756: strings in quotes are not properly ended) today while testing the import of data, the first few tests have been good not encountered problems, but then added a sentence in English, then an exception is reported. Www.2

Oracle data dictionary introduction and use of Chinese name: data dictionary English name: data dictionary Definition: a set of information about all objects in the database and their relationships. A Data Dictionary defines and describes data items,

Oracle Data Pump tool series: how to reinstall the DataPump EXPDP/IMPDP tool and how to reload the Datapump utility EXPDP/IMPDP this article applies to OracleDatabase-Enterprise Edition-Version 10.1.0.2 to 11.2.0.3 which may need to be reloaded in

Oracle 10g Regular Expression REGEXP_LIKE usageThere are four functions that support regular expressions in ORACLE:1. REGEXP_LIKE: similar to LIKE2. REGEXP_INSTR: similar to INSTR3, REGEXP_SUBSTR: similar to SUBSTR4. REGEXP_REPLACE: similar to

Rman backup script rman shell script editing is first tested in rman to check whether the backup is normal. The statement is being judged. Backup script sh command export target/msglog =/oracle/ora10g/rmanbak/bakl0.log export file

The if exists function similar to MSSQL in ORACLE does not have if exists (...) in Oracle (...) currently, there are many solutions. Here, we first analyze the three commonly used methods. We recommend that you use the last one. The first one is the

What Oracle DBA should do on a daily, weekly, and monthly basis (I) Check alert on a daily basis. log ② check the environment ● check whether the database instance is working properly ▼ ps-ef | grep ora _ explain select status from v $ instance ●

Oracle 11 Client installation and PLSQL and TOAD Chinese garbled solutions 1. Download the "Instant Client Package" software from Oracle, which provides a better solution for Oracle Client greening. Is: http://www.oracle.com/technology/software/tech/

The query results of the oracle database table name and field information in the table are the table name, field name, field type, field length, and default value. Select col. TABLE_NAME, col. COLUMN_NAME, col. DATA_TYPE, col. DATA_LENGTH, col.

Oracle sequence parameters: nextval and currval. Nextval returns the next avaiable sequence value. it returns a unique value every time it is referenced, even for different users. currval obtains the current sequence value. open the first session