Oracle

One, character functions1.INSTR (X,find_string[,start][,occurrence])This function is used to find the string find_string in the string x, and returns the position where it is located. Within [] is an optional parameter, start represents the starting

we use Jdbcdaosupport in spring to insert data into MySQL and return the primary key code, we use the MySQL database, the primary key is set to self-growth in the database: The class inherits from Jdbcdaosupport , so you can use Getjdbctemplate

This is often used in OracleSelect Col1,col2, Row_number () over (partition by Colx order by Coly) from TABLE_NAME;;This means that the values in the table are grouped according to Colx, and each group is sorted internally by Coly, and Row_number ()

Today I want to install Oracle 11g R2 on my Ubuntu, have some tutorials on the web, and then find the operating System Requirements on the Oracle website, as follows:Operating System RequirementsThe following or later versions of the operating

When a user wants to access data in another database table across a local database, the local database must have a dblink of the remote database, and the Dblink local database can access the data in the Remote database table as if it were accessing

I. GENERAL Enquiry/* Query table data */SELECT * FROM STU/* Remove the first 3 rows of data */SELECT * from Stu where rownum/* Fuzzy query */SELECT * from Stu where stu_id like ' stu001% 'Description: The wildcard "%" represents one or more

http://www.cnblogs.com/opaljc/archive/2013/04/09/3009898.html Outer connection has the following three kinds (generally no left, right, full and other keywords are internal connection): 1. Left OUTER join (based on left table table, left table full

http://zhanghong.iteye.com/blog/8659371. Create a database table firstSql> CREATE TABLE Customer (2 ID Number (8) NOT null primary key,3 name VARCHAR2 (20),4 Age Number (3),5 gender VARCHAR2 (8)6);2. Create sequence:Create sequence customer_sequence

In Oracle, sequence is the so-called serial number, which is automatically incremented each time it is taken, and is typically used where serial numbers need to be sorted.   1, create sequence   you first have to have create sequence or

Sample Data PreparationCreate a Dept table in HiveCreate Table int by ' \ t ' by ' \ n ' as Textfile;Import data:-- Connect JDBC:ORACLE:THIN:@192.168.1.107:1521:ORCL \ -- username SCOTT--password Tiger \ -- table DEPT

ORACLE database space bare device is out of the problem, startOracle failure, workaroundProblem phenomenon:StartOracle reported the following error:Database mounted.Ora-01122:database File 6 failed verification checkOra-01110:data file 6:

FGA audits have these features:This article is original article, reprint please indicate source: http://blog.csdn.net/msdnchina/article/details/384090571.select * from Table_xxx where 1=2--the statement is not audited into dba_fga_audit_trail,

Use the following command to install the Oracle grid in debug mode and log the logs to a file[Email protected] 11ggrid]$/runinstaller-debug >/home/grid/oracle_grid_installer_ 'date +%g%m%d_%h%m% S '. LogNote: The file name is added to the current

-------------------------------Logical Structure------------------------------------ Reference Document: Chapter 12 Tablespace table Space Maximum storage unit Establishment object specifies that the table space is stored Segment segment: Can store

Oracle establishes tablespaces and usersSteps to establish a tablespace and User: Create user username identified by "password"; authorization: Grant create session to username; Grant CREATE table to username; Grant create

Create and delete Oracle users 1. Create a user: SQL> create user user01 identified by user01; User created. But the logon error 01045 is displayed, and the create session permission is missing. ERROR:ORA-01045: user USER01 lacks create session

[Translated from mos] maximum size of OracleGoldenGate (OGG) trailfileMaximum size of Oracle GoldenGate (OGG) trail fileReference Original:What's the OGG trail size limit? (Documentation ID 1348080.1)Applicable:Oracle GoldenGate-Version: 10.4.0.99

Oracle Database In-Memory: breaks through the row and column restrictions to achieve real-time analysis Two weeks ago, Oracle released Oracle Database In-Memory globally. Oracle Database In-Memory will be provided as an optional accessory for

Oracle 11g Set User Password case sensitivity test, oracle11g The 11g password is case sensitive by setting a parameter. The following is an experiment: C: \ Documents and Settings \ guogang> sqlplus gg_test/gg_test@10.10.15.25 _ ggSQL * Plus:

Oracle tablespace and sqlplus1. Concept of tablespace I have never heard of the table space term in databases that I have used before. When I saw the Oracle database some time ago, I found that the table space is everywhere. Therefore, tablespace