Oracle

Step 1: migrate the table to the target tablespace 1) use the following statement to list the tablespace statements to be moved in PL/SQL, Select 'alter table' | table_name | 'move tablespace destination tablespace name; 'from user_all_tables

--- The restoration method for accidental deletion of data in Oracle, depending on the size of the rollback segment, only three hours of data can be restored.--- Restore to a certain time point (data operation time point)--- It is only applicable to

In hibernate4.1.4, the following error occurs when a table is automatically created in the Oracle Dialect: Java. lang. abstractmethoderror: Oracle. JDBC. driver. oracledatabasemetadata. getjdbcmajorversion () Z is caused by compatibility issues with

ProgramIt runs normally under weblogic10.3.0, but the program written under weblogic10.3.5 cannot pass, trackingCodeThen it is found that the resultset object returned by the resultset. GetObject (INT) method is Oracle. SQL. timestamp, rather than

Article by: http://esffor.javaeye.com/blog/168231 　　 Create a sequence Introduction to Oracle Sequence In Oracle, sequence is the so-called serial number, which is automatically increased every time it is obtained. It is generally used in places

1. Create a dbms_logmnr packageThe following directory is the installation directory of the Oracle server.SQL> @ D:/Oracle/product/10.2.0/db_1/rdbms/admin/dbmslm. SQL 2. Create a data dictionarySQL> @

It is strange that when I log on to the network service, the host cannot be logged on all the time and the password is incorrect. Http: // greenwil-279c3a: 1158/EM/console/NET/login where the greenwil-279c3a is my computer name I used my username

The paging SQL statements for Oracle, SQL Server, and MySQL are as follows: ORACLE:   Method 1: Select * from ( Select a. *, rownum Rn From (select * From table_name) Where rownum ) Where rn> = 21; Method 2: Select * from ( Select a. *, rownum

$ Su-Oracle switch to Oracle user first 1. Start Oracle$ Sqlplus/nologSQL> Conn/As sysdbaSQL> startup (generally, you do not need to add parameters. You only need to set environment variables)SQL> quit (exit SQL Mode)$ LSNRCTL start (start listener)

Xflag = 0;While [$ xflag-ne 10]DoValue = 'sqlplus-s dbusername/uspass @ XXXX Set heading off;Set feedback off;Set pagesize 0;Set verify off;Set echo off;Select service_sn from rule_phone_sell_activity where rownum = 1 and flag = 0 and sell_type =

Connect by is used in structured queries. Its basic syntax is:Select... from tablename start with condition 1Connect by condition 2Where Condition 3;Condition 1 is a restriction statement for the root node. Of course, you can relax the restriction

It is necessary for Oracle to install a program on its own machine. After all, sometimes you need to learn it at home, but the computer is not used by yourself. You still need to write a batch to solve the problem. If you need it, click Start, it is

Oracle Data Security Maintenance I remember a philosopher saying, "The changes of things are inseparable from internal and external causes ." Therefore, Oracle data security is also divided into "internal" and "external. Well, let's start with

Using Oracle's ready-made sorting method, it is very easy to compile a function to obtain the first letter of Pinyin. You only need to find the corresponding start and end Chinese characters for each first letter and compare them based on these

Oracle 10g listener automatically listens to the IP address of the host when the host starts. The Oracle 9i listener automatically listens to the host name when the host starts.   Therefore, when using Oracle 10 Gb, if the I machine automatically

Myeclipse 6.0 and Oracle 10g have the following problems during connection. Java. SQL. sqlexception: ORA-00604: Error occurred at recursive SQL Level 1ORA-12705: cannot access NLS data files or invalid environment specified At first, I thought it

1. Use % TypeIn many cases, PL/SQL variables can be used to store data in database tables. In this case, the variable should have the same type as the table column. For example, if the first_name column type of the Students table is varchar2 (20),

This article starts with the definitionOracleDatabaseHow to fully understand character sets. What is the Oracle character set? The Oracle character set is a collection of symbols for the interpretation of byte data. It can be divided into different

Imp/exp commands are all commands under the database account, that is, the commands used after Su-Oracle.IMP command# Imp unsap_dec destination/unsap_dec destination file =/usr/test. dmpThe system automatically exports the file test. dmp.Exp command#

Conversion from http://love-flying-snow.iteye.com/blog/573303 Let's talk about partition syntax. Oracle table partitions are divided into four types: range partitions, hash partitions, list partitions, and composite partitions.   I. Range