Oracle

--Test dataCREATE TABLE Rowtocol_test asSelect year,1 Month, ' Department 1 ' dept,50000 expenditure from dualUNION ALL Select 2009, 2, ' Department 1 ', 20000 from dualUNION ALL Select 2009, 2, ' Department 1 ', 30000 from dualUNION ALL Select 2010,

--Create tablecreate table TSQ (ID number,name VARCHAR2 (2))--tsq.ctlload dataappend into table Tsqfields terminated by ', ' TRAILING nullcols (ID, NAME)WindowsSqlldr Tmall/[email protected] control=d:\tsq\tsq.ctl data=d:\tsq\tsq.csv readsize=5120000

Background:Early in the project is the establishment of a server two instances, the client configuration two connections, now need to consolidate two instances of one instance, requires that the client's configuration is not changed.For

Managing a Oralce Software:How to manage a database, what knowledge you need to know.1. Installation: location, character set2. Build Library: What database name3. Database Startup:Nomout: Read parameter file, some initialization settings

1. Previously, SQL was used without deep learning of the underlying knowledge of the database, especially in terms of how it processes and how locks and underlying data are stored.2. Gradually in the development of the database requirements are

The database version is oracle10g In a database server operation: will need to transfer the database a cold backup, cold backup, I am very simple. Start-to-run: / as // log in to the database with DBA Authority Sqlplus > shutdown

SQL>descdbms_random: Querying stored procedures and functions under the Dbms_random packageA, value () is used to return a random number between two values, value (Low, high) SQL>SelectDbms_random.value () fromDual: The default is 0 to 10.05368242484

1. Create a new tablespace newspaces (original tablespace oldspaces)2. Export data from the original tablespace (TEST.DMP), then import the previously exported data (TEST.DMP) in the new tablespace, and select Import from user to user3. Execute the

1. The partition key field cannot be updatedALTER TABLE T_XJ_HD enable row movement;2. Unlocking the DatabaseAlter user SRDH account unlock (SYS login)3. Add PartitionALTER TABLE TDM_IN_CCR_TRMNL_PREFER_M ADD partition P201211 values (201211)

Management of Oracle UsersCreate userOverview: In Oracle, to create a new user using the Create USER statement, you typically have DBA (database administrator) permissions to use.Create user username identified by password; (Oracle has a problem,

If the test List has 3 table field IDs, the name address is as follows:ID Name Address1 Little Two Beijing2 Little Two Tokyo3 Little Two Beijing4 Xiao Liu NanjingIf you want to identify duplicate data for name and address.SELECT * FROM (select

Orcal database review notes① In SQL, which is not equal to <> eg: select * from emp where deptno <> 10; ① fuzzy match keyword is like _, which represents a character, % indicates 0 or more. eg: select ename from emp where ename like '_ A % ';②

Risks of incorrect selection of Oracle Database Design Field Types A hidden danger of inaccurate data types. The following constructs a table storage date field, one storage varchar2, and one storage date for a test. I have also written two blogs

Solution to PL/SQLDeveloper in window864-bit + Oracle12c64-bit 1) install Oracle 12c 64-bit 2) install a 32-bit Oracle client (instantclient-basic-nt-12.1.0.1.0.zip) Download instantclient-basic-win32-11.2.0.1.0.zip, must be win32 version, Oracle

Oracle retrieves 4 to 10 rows from the row range query and sorts the rows with oracle10 Rownum cannot be used directly. aliases must be converted after query. Take the EMP table as an example and take 4 to 10 rows: Select * from (select rownum id,

DBA_Oracle GoldenGate introduction (concept), oraclegoldengate 2014-09-12 BaoXinjian I. Summary GoldenGate is a log-Based Structured Data replication software. It parses online logs of the source database or archives logs to obtain incremental data

Graph tutorial for installing and deploying an Oracle Server in CentOS 6.3, centosoracle 1. installation environment: Linux: CentOS 6.3 64-bitOracle: Oracle11gR2 64-bit Ii. system requirements: 1. Requirements for installing Oracle in Linux

Import data to plsql and plsql 1. TOOLS --> ODBC IMPORTER2. TOOLS --> TEXT IMPORTER3. sqlldr userid = zj/zj @ orcl control = D: \ test. ctl Content of the test.csv file: 1 ah 2's 3 Yes Test. ctl file content: LOAD DATAINFILE

Oracle homepage on the Web The code in this example only describes how to use common Oracle paging methods on the Web. It does not involve MVC, code optimization, and so on. For more information, see. Zookeeper ---------------------------------------

Oracle Database official statement does not support Vmware Oracle explicitly stated on its official Support website in September that it does not Support running Oracle databases on VMWare.What should we do in the current era of virtualization?I