Oracle

How to Use PL/SQL Developer to query data tables starting with/BI0/* And/BIC/* in BW backend Oracle? 1. Data Tables in BW: the data Table automatically generated by the backend for objects in BW starts with/BI0/* And/BIC/*. For details, see the

Oracle's names are confusing for beginners. Me too. The relationship between database name-Global name-service name-Instance name-alias is constantly cut, and the logic is still messy. I understand it. It's a bit of a taste in my mind. SQL> show

Oracle 11g Release 1 (11.1) function -- (returns the value of a character) character function in this document content returns the value of a character function appendix ASCII Oracle character functions include: the character function that returns

Oracle SQL Summary 3: DDL Statement 5. DDL statement 5.1 Enable/Disable/Validate/Novalidate combination features: whether www.2cto.com meets the constraint that Validate Novalidate has been record added/modified record existing record

Are you also cheated by the to_date () function? We can use the to_date function to construct any time we want. If HH, MI, and SS are omitted, oracle defaults to 0, that is, to get the whole day. If DD is omitted, oracle is set to 1 by default, that

Oracle (6) pl/SQL pricing, paging process-write a process, you can add a book to the book table, requires that the process be called using a java program case 1 (no return value) -- create table book (bookId number, bookName varchar2 (50),

Understand oracle Autonomous transactions 1. What is Oracle Autonomous transactions? In the official documents, the definition of "Autonomous transactions are independent transactions that can be called from within another transaction. that is to

Oracle flashback table description flashback table purpose: 1. Use the flashback table statement to restore the TABLE to the status before a human error or application error occurs. 2. The amount of undo data in the system depends on how long it

In the pl/SQL process, a small case is displayed by page. You can enter the table name, the number of records displayed on each page, the current page, the total number of records returned, and the total number of pages, and the returned result set

Sequence operations in Oracle and use the previous initialization of sequence 1 create sequence myseqstart with 1 increment by 1 nomaxvalueminvalue 1 II Initialize sequence select myseq. nextval from dual; it is worth noting that if you write select

Oracle implements paging select * from a_matrix_navigation_mapwhere rowid not in (select rowid from a_matrix_navigation_map where rownum 0 the third SELECT * FROM table where rownum 0Oracle does not support limit similar to MySQL. however, you can

Error: The system has not been taken off maintenance mode completely after patches are solved, restart The EBS Server, and report ErrorThe system has not been taken off maintenance mode completely when using IE to log on. please contact your System

Oracle Quarterly Statistical Statement -- Create TABLE TestCTEATE table test (id number not null, modifiedtime date not null) -- calculate SELECT TO_CHAR (T. MODIFIEDTIME, 'yyyy') YEAR, TO_CHAR (T. MODIFIEDTIME, 'q') TIME, COUNT (*) COUNT

Oracle Statement of monthly statistics -- Create TABLE TestCTEATE table test (id number not null, modifiedtime date not null) -- SELECT TO_CHAR (T. MODIFIEDTIME, 'yyyy-mm') TIME, COUNT (*) countfrom test t www.2cto.com -- the query condition WHERE

Explain the Oracle Decode function select. OK, sum (decode (cname, 'computer ', countnum, 0) from www.2cto.com (select cname, case when scgrade = 60 and scgrade = 70 and scgrade = 85 and scgrade = 60 and scgrade = 70 and scgrade = 85 and

Logical backup creates a logical copy of the database object and stores it in a binary dump file :. the exported dmp file records are not related to the physical location. The essence of the import is to read the exported binary dump file and

Oracle creates tablespaces, creates users, authorizes, disclaims permissions, deletes users, and deletes tablespaces. Table spaces are defined to unify ORACLE physical and logical structures. Physically, a tablespace is composed of data files on one

Recently, we found that the REDUNDANCY policy for retaining 10 Gb RMAN backups has changed compared with 9i. In Oracle9i, the REDUNDANCY value of the backup retention policy refers to the number of Backup REDUNDANCY. That is to say, if REDUNDANCY is

Oracle note (8) complex query and Summary 1. Complex query 1. List all Department numbers and names of at least one employee, the average wage, minimum wage, and highest wage of these departments are also calculated. 1. determine the required data

Oracle tool: simple use of logminer my environment: [root @ localhost ~] # Uname-aLinux localhost. localdomain 2.6.18-308. el5xen #1 SMP Fri Jan 27 17:59:00 EST 2012I686 i686 i386 GNU/Linuxsys @ ORCL> select * from v $ version where rownum = 1;