Oracle

1. BackupCD $CUXWL _TOP/12.0.0/FORMS/ZHS/d01/cwtest/apps/apps_st/appl/cuxwl/12.0.0/forms/zhsll CUXWL_PO_RCV*.FMXCuxwl_po_rcv2.fmxCuxwl_po_rcv.fmxExtended:CP Cuxwl_po_rcv2.fmx{,.bak}CP Cuxwl_po_rcv.fmx{,.bak}If there is a problem with the deployed

How can you completely uninstall Oracle with an Oracle-brought uninstaller that does not fundamentally offload Oracle, leaving a hidden danger for the next installation?That is the direct registry cleanup, the steps are as follows:1, start-up

Import an Excel table into the Oracle databaseI. Establishment of a table1. Create a table650) this.width=650; "Style=" background-image:none;border-bottom:0px;border-left:0px;padding-left:0px;

Float,double,number are both numeric types of Oracle.1 man = 2 english = 2 bytesDouble indicates that the dual-precision floating-point number occupies 8 bytes in the machine and is described with a 64-bit binary.1. When there is only one parameter,

Oracle Import Chinese garbled solution One, ensure that the encoding of each client character set is consistent with the server character set encoding1-Determines the sqlplus character set encoding, if Windows sets environment variables.2-Ensure

There are a number of reasons why Oracle Index failures can be easily caused:1. Use the function on the index column. such as SUBSTR,DECODE,INSTR, and so on, to the index column operation. You need to create a function index to resolve it.2, the new

SELECT Decode (sign (to_date (' 2008-05-01 ', ' yyyy-mm-dd ')-To_date (' 2008-03-01 ', ' yyyy-mm-dd ')),1,To_date (' 2008-05-02 ', ' yyyy-mm-dd '),To_date (' 2008-03-02 ', ' yyyy-mm-dd '))From dual--decode only supports comparison values for

Processing method for Oracle 11g cannot export empty table with EXPExecute the following SQL query in Plsql Dev:Select ' '| | table_name| | ' allocate extent; ' from where num_rows=0Then you can export the empty table in the oracle11g after you

CREATE OR REPLACE PROCEDURE current_userisBEGIN SYS. Dbms_stats. Gather_table_stats ('schname'TableName ' CASCADE = TRUE); END ; /Select Owner,table_name,last_analyzed,num_rows from dba_tables where owner= ' SYSTEM ' and Table_name= '

1. If you use powerdesigner such a tool, be careful to remove the double quotation marks from the table in the exported SQL statement for the tool.2. When building tables and building fields, use underscores between different words, such as rec_id3.

No matter what version of Oracle you install, you need to configure the/etc/pam.d/login/etc/profile/etc/security/limits.conf three files before installingSo what exactly are these three files for? The answer is to set the shell limits for the Oracle

Recently to another system docking, the other side with Oracle, the bite, from the installation of Oracle, deployment, access to data, technology has been greatly improved, no longer have the sense of mystery and fear.1, the server is 64 bits, so

Turn off Oracle-related services Registry removal (possibly due to different registry information for Oracle and Windows versions some differences ): start è enter regedit?" Open Registry Editor to remove the following directory

Objective:recently in the study of Oracle, here I put the installation and configuration process to record, follow my method of this step by point basically no problem, If you have any questions, you can talk about learning from each other.

Oracle broadly divides functions into single-line functions, aggregate functions, and analytic functions.Single-line functions are divided into character functions, date functions, conversion functions, numeric functions, general functions, decode

SELECT object_name,session_id SID,Machine,Vs. MODULE,' ALTER SYSTEM KILL SESSION ' | | session_id | | ', ' | |serial# | | ‘‘‘; ' Kill_session,Vs. STATUS,Vs. ACTION,serial#,Oracle_username,Os_user_nameFrom V$locked_object VO, V$session VS,

Classification of parameter files:Spfile:server parameter fileBinary format, out of file system bondageCan only be placed on server sideBetter consistencyOnly use SQL commands to modifySPFile priority is higher than pfileNaming rules: Spfile.ora &

Paged Query StatementsIntroduction to Syntax Triple nestingSELECT * FROM（Select Emp.*,rownum as RNFrom(Seect * from EMP）where RowNum ）where rn>=7First, the table field additions and deletions to change:Syntax for adding a field: ALTER TABLE

This article is reproduced from http://blog.itpub.net/28602568/viewspace-1364844/Preface:  Do you want to query, summarize or optimize the rows of SQL every day, the following SQL wants to help    ---query perform slow sql:select s.sql_text every

The function of DBLink is to access the database on the other server through the database of one server on the intranet.The following is a simple introduction to the configuration of Dblink:Server A:ip 10.10.10.107, db instance name: ORCL Database