Oracle

Just encountered a problem, the other side of the server environment for Linux, in accordance with the general Sqlldr import data, through the Plsql query found to be a question mark and garbled. Through the SELECT * from V$nls_parameters of the

If you are connected to your native Oracle: 1, in the cmd command line to try: Ping native IP address; 2, to ensure the shutdown firewall 3, the database listener started 4, of course, also does not exclude the caching problem, so need to

An error encountered during the use of spring+mybatis+oracle. Finally see online sharing to solve this problem, mark. The main problem is that the MyBatis configuration is problematic. I copied it directly below. Original link:

/* Source: Network Collection and collation: Chenj Date Created: 13:21 2010-3-3 Modified time: */ /* Phenomenon: ora-28001:the Password has expired Reason: Due to "password_life_time=180 Day" set in default profile in oracle11g Effect: Once the

At present, the main data warehouse development, the following major records need to optimize the process of SQL learning, reference data "Oracle query optimization rewrite skills and cases", mainly learning notes, covering the following chapters,

Tblname=request ("TB") Dim objorasession,objoradb Dim Strdbuser,strdbpwd,strdbconn Call Connectdb () Sub connectdb () ' Connect to the database On Error Resume Next Strdbuser = "Liujincai" ' Connection user name Strdbpwd = "ljc1001" User

The with as phrase, also called the subquery section (subquery factoring), can do many things, defining an SQL fragment that will be used by the entire SQL statement. Sometimes it is to make the SQL statement more readable, or it may be in different

First, create a custom type Create type T_air as Object (ID int, name varchar (20));CREATE TABLE test (id int, person t_air);INSERT into test values (1,t_air (1, ' 23sdf ')); ii. Delete Custom Types Method One Normal Delete order, first delete

the difference between over partition by and group byToday I saw a problem with a man, Probably as follows: Find out the userid number of the lowest wage in the department Table structure: Wage Department D UserID Salary Dept 1 2000 1 2 1000 1 3 50

Rac,data Gurad,stream is the three tools in the Oracle High-availability system, each of which can be used independently or in conjunction with each other. Their respective emphasis is different, the application scenario is also different. RAC its

If you are are on database release 10.1.x or 10.2.x the XDB Feature are mandatory in order to use any of the member functions O f the XmlType. This is true even if you are are not using the repository, or registered schema aspects of the XDB feature.

Oracle in depth fifth chapter locking and latching LocksIn Single-user systems, locks is not needed. In multi-user system, in order to allow multi-user access to data, modify data, modify the structure, you need a mechanism to ensure that

How to reconfigure the EM Database control for OracleAuthor: eygle | Chinese Version "Copyright notice: Reprint, please be sure to hyperlink form to indicate the original source and author information and this statement" Link:

When constructing sqloutparameter, it can be returned to list by adding rowmapper Sqloutparameter bearid=new Sqloutparameter ("bearer", Oracletypes.cursor,new rowmapper () {public bearer Maprow (ResultSet rs, int rownum) throws SQLException

To transfer a user's table to another table space(1) Exp. export all data by user or by other meansEXP Owner=user1 file=user1db. CM7(2) If the table space is replaced in the original instance, delete all the tables for that user first.Select ' Drop

Three highly available cluster scenarios for Oracle Take a look at the official Oracle Web page and the unofficial PPT to get a quick look at the high availability offered by Oracle. There are three main types: 1. RAC RAC, real application

1. Query Statement Analysis /* Formatted on 2015/12/26 15:09:55 (QP5 v5.163.1008.3004) */ SELECT sheetID, b*****, b*****, b*****,b*****, b*****, b*****, b***** from view_b2bsaleckex

Oracle Encryption and decryption Cryptographic functions Create or Replace functionEncrypt_des (P_text varchar2, P_key varchar2) return varchar2 isV_text varchar2 (4000);V_ENC varchar2 (4000);Raw_input RAW (128);Key_input RAW (128);Decrypted_raw Raw

1. View Oracle Encoding command Select Userenv (' language ') Nls_lang from dual; 2. The Change Order is as follows sql> Conn/as sysdba sql> shutdown immediate;Sql> Startup Mountsql> ALTER SYSTEM ENABLE restricted session;sql> ALTER SYSTEM SET

Path: C:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN Listener.ora File Settings # Listener.ora Network Configuration File:c:\app\administrator\product\11.2.0\dbhome_1\network\admin\listener.ora # Generated by Oracle configuration tools.