Oracle

The import and export of Oracle database is an important technical work, not only solves the import and export of the database, but also makes it easier and quicker to obtain the data.Import and export data using imp and expExporting data using

1. Querying the path of Oracle logsSql> Show Parameter Dump_dest name                                  type         VALUE ----------------------------------------------------------------------- ------ background_dump_dest           string      /home/

has been verified.Requirements: A. A string in a database table may contain a "+" Example: orc+001may also not contain "+"B. Request if the string contains "+", the character before "+" is taken: orc+001 take ORCC. If the string does not contain "+",

Sdd53homeNew Oracle Database encountered ORA-00922: option is missing or invalidCause: There is usually a problem with the syntax of the statement. For example, the name is wrong, the keyword is wrong and so on. For nonstandard naming, double

Installing OracleI use the Win10 64-bit, the official website downloads 64 Oracle 12c, two files.Unzip the first file after installation, but install to half error, prompting missing files. Later found that the original two files to be extracted

Drop user xxx Cascade;drop tablespace xxx including contents and datafiles;create tablespace xxx datafile ' E:\oracle\produ ct\10.2.0\oradata\ts\xxx.dbf ' size 100M autoextend on next 10m maxsize unlimited;create user xxx identified by "p PP

Note is used to explain the program code, it can enhance the readability of the program is easy to understand the program.Single-line Comment:With "--", followed by the contents of the commentDeclareNum_sal Number;--declaring a variable of a numeric

Initialization--CREATE TABLE SpaceCREATETablespace table space name datafile'file name. dat'SIZE 100M Autoextend on NEXT10M MAXSIZE UNLIMITED;--Create User (Oauser)--Connect InternalCREATE USEROauser identified byOauser;ALTER

Centos6.4Find instant Client from Oracle website:Http://www.oracle.com/technetwork/cn/topics/linuxsoft-100466-zhs.htmlDownload Basic and SqlplusWhat I'm downloading here isInstantclient-basic-linux32-11.2.00.1.zipInstantclient-sqlplus-linux32-11.2.00

The merge statement is a new syntax for merging the UPDATE and INSERT statements oracle9i. Through the merge statement, the other table is queried based on the join criteria of one table or subquery, and the connection condition matches the update,

Public voidgetdept () {Cux_baseinfo_oa_pkg_service client=NewCux_baseinfo_oa_pkg_service (); varInputParameters =NewInputParameters (); inputparameters.p_action_id="1"; varUsertoken =NewUsernameToken ("Erp_api","qazwsx12345",

--accumulation of SQL for workThere are other types of Oracle. Storage process. Input from the function, and so on.below to see the creation.How to useCREATE OR REPLACE type name as OBJECT(Field 1 type,Field 2 Type,Field 3 Type)Like whatCREATE OR

four ways to connect to a database in C #Before you connect to the following database, install the Oracle Client locally, and the version of this test System.Data is: 2.0.0.0.On the installation of Oracle client please note that if the OS is 3-bit

Because the Data Warehouse ETL process, the execution time of a mapping more than one hours, Select event,count(*) fromv$session_wait Groupbyorder Bycount (*) descFind that log switching takes a lot of time to try to increase the size of the redo

Just beginning to learn Oracle, record their own study notes, if there are errors, but also hope that you have a lot of advice.first, a relatively important figure in the Oracle architecture, as follows 650) this.width=650; "Src="

Environment: WINDOWS2008R2 (x64) Oracle 11.2.0.11. Locate the Oracle Server Netmanager program (typically in the Start menu->oracle-> configuration and Porting tool), modify the following two locations (modify IP to the IP address where Oracle

Common Oracle SQL skills (conversion) and oraclesql skills 1. Avoid "*" in the SELECT clause.When you want to list all columns in the SELECT clause, using dynamic SQL COLUMN reference '*' is a convenient method. unfortunately, this is a very

Implement the generate_series function of POSTGRESQL in OraclePostgreSQL has a sequence generation function that allows you to easily create data. Here, I use ORACLE to implement the generate_series function of PGSQL.POSTGRESQL. T_girl = # select *

Solution to service failure after Oracle changes the machine name After the machine name is changed in Oracle, the service cannot be started normally. You can do the following: 1. in the oracle \ product \ 10.2.0 \ db_3 \ network \ ADMIN directory,

Stored Procedure-Comparison Between MySQL and Oracle1. introduction to Stored procedures our commonly used database language SQL statements must be compiled before execution, while Stored procedures (Stored Procedure) is a set of SQL statements for