Oracle

1. Simple Data Insertion Example-- Created on 2015/6/15 by LYH declare v_fnumber varchar2(10):=‘qwe‘; v_fname varchar2(10):=‘lyh‘; v_fage int:=10; v_fsalary int:=101.00;begin INSERT INTO t_employee(fnumber,fname,fage,fsalary)

Syntax: Connect by is used in structured queries with the following basic syntax:Start With,connect by main purpose: Remove the tree data from the table. Each piece of data that can be assumed to be stored in a table is a node in the tree,

Method 1:Probably everyone has solved, I also encountered this problem, C # update stuck, but plsql update no problem. has not found the answer, inadvertently remembered, may be Oracle's table locked.Use the following method to successfully unlock

Select--*Tcl.column_name,cc.comments Col_comments,data_type,Case Data_type If ' number ' then ' (' | | data_precision| | ', ' | | data_scale| | ') 'When the ' VARCHAR2 ' then To_char (char_length)When the ' CHAR ' then To_char (char_length)When the '

Methods for generating UUID in Oracle Download the Lofter client provides a function to generate the UUID in Oracle SQL sys_guid:http://download.oracle.com/docs/cd/e11882_01/

One, theOracle data dictionary is composed of the following views mainly:1.user ViewUse User_ as a prefix to record information about user objects2.all ViewAll_, which is used to record the information of the user object and the object information

Limit--->oracle page,DateFormat--->oracle date format,Now ()----> Get system time,It's not the keyword in MySQL, it's the keyword in Oracle. Mysql Oracle ORDER BY id desc limit #{offset},#{pagesize} where

Scene:Wrote a stored procedure with a return parameter, which is normal on a different developer's machine. Other machines reported title errors. The depressing thing is that all callers are clients, there is no issue of version inconsistency that

Paging statements:Select z.* from (select X.*,rownum members from Reg_user x where rownum01 Get Total PagesSQL code 01.SELECT DECODE (mod (COUNT (*), s), 0,count (*)/100,trunc (COUNT (*)/100,0) +1) 02.AS pages from XZQH where XZQH is the name of the

Now that you have Excel data that you want to import into an Oracle table, Excel's columns and fields for the Oracle table are the same, and the Excel content and table are as follows:Copy the contents of Excel into the Oracle table, just copy and

Foreword: All of the following operations are based on the successful installation of the Oracle database and the Java development environment in a normal situation.If not, configure the underlying environment first.First step: Configure the

To completely uninstall the oracle11g step:1. Start-> Setup-> Control Panel-> Management Tool-> Service (or run services.msc) stop all Oracle services.2. Start-> Program->oracle-oradb11g_home1->oracle Install product-> Universal Installer, click

IamlaosongThe Oracle Temp table space is used primarily for querying and storing some buffer data. The primary reason for the temporary tablespace consumption is the need to sort the intermediate results of the query. The primary role of temporal

From:http://www.cnblogs.com/wangyayun/p/4514411.html//8 seconds To add 20,000 data in bulk. Try{String URL= "Jdbc:oracle:thin: @IP: 1521:ORCL";//ORCL The SID for the databaseString user = "Oracle"; String Password= "Oracle"; StringBuffer

1. View processes and Sessions parameterssql> Show parameter ProcessesNAME TYPE VALUEdb_writer_processes integer 1gcs_server_processes integer 0job_queue_processes integerlog_archive_max_processes integer 2processes integersql> Show Parameter

from:http://zhangqchang.blog.163.com/blog/static/464989732009219114653226/A few examples to be picked up onlineOne*****************************************************************Merger into is a statement added by Oracle starting at 9i, from the

One: Stored procedure with no return valueThe stored procedure is:CREATE OR REPLACE PROCEDURE inch VARCHAR2 inch VARCHAR2) as BEGIN INSERT into VALUES (PARA1, PARA2); END TESTA;Then, call it in Java with the following

In Oracle we know that there is a hierarchical Queries with connect by we can conveniently check all the child nodes under all current nodes. Unfortunately, there is no corresponding feature in the current version of MySQL.In MySQL if it is a finite

An oraclebug discovered by dblink in XA A new error message was found in the recent monitoring system logs, which is strange and has not been found before. As follows: ORA-24777: do not allow use of database links that are not portable. The

Oracle elegant for loop insert inloopinsert Create table computers (comNo number (4) constraint PK_comp primary key, compModel varchar2 (64) constraint unique_comp unique, buyTime date, price number (12, 2) constraint ch_price check (price> 0 and