Oracle

Oracle odp.net cannot connect to oracle. If you happen to be using a 64-bit operating system (such as win2008 r2), the development tool is also the most advanced vs.net 2010 sp1, however, when the Code fails to connect to oracle, it always reports

How to Use the sqlldr command in oracle (using the sqlldr tool (batch import data) sqlldr can import large amounts of data in the text to the oracle database table www.2cto.com in win7, I tried it myself and shared it with you. 1. create a simple

Oracle Database Merge Into-how to use Sequence instead of "waste" 1. Problem Background: this problem is a problem introduced during Data Stage, the use of Merge Into is a waste of NextVal. Www.2cto.com 2. Test prerequisites: Create a script. SQL

Oracle retains decimal places. When we are working on a project today, we will find the data in one table and update it to another table. However, an error is reported during execution. The error is as follows: www.2cto.com SQL code ORA-01438: The

ORA-01460: the conversion request cannot be implemented or unreasonably solved oracle10g Database execution database update SQL error: www.2cto.com Caused by: java. SQL. SQLException: ORA-01460: conversion requests cannot be implemented or

ORA-12514 and ORA-28547 error fix Oracle11g full database installed, the Oracle is previously installed with the modify configuration NET Manager can be connected. But there was a small accident today. Let's summarize it here. Www.2cto.com (1)

Processing of null values when order by is used in oracle: When oracle sorts query results, null values exist in the column to be sorted, specify the NULL value at the beginning or at the end of the www.2cto.com Keyword: Nulls First; Nulls Last

Propagation of oracle exception SQL code www.2cto.com procedure test1 (p_RETCODE in out varchar2, p_retInfo in out varchar2); procedure test2 (p_RETCODE in out varchar2, p_retInfo in out varchar2 ); procedure test3 (p_RETCODE in out varchar2,

The oracle object unlock operation queries the locked object select * from v $ locked_object; www.2cto.com queries the locked table select B. owner, B. object_name,. session_id,. locked_mode from v $ locked_object a, dba_objects B where B. object_id

Create or replace function gettaxcycle (www.2cto.com vv02 IN vv02_accounts_tin % ROWTYPE, returnoption in number) return number as tr12rec %% ROWTYPE; tg05rec %% ROWTYPE; taxcycle NUMBER; begin select * INTO tg05rec FROM tg05_tax_type_details WHERE

Common oracle System Table 1. SQL-based common system Table 1.1. system Object table sysobjects www.2cto.com Function Description: stores the objects of the current database, such as constraints, default values, logs, rules, stored procedures, and

Database environment simple detection conn/as sysdba -- output the file to the specified path spool c: \ output www.2cto.com -- (set echo on outputs all query statements) set line 150 -- disable tti off on the header of each page -- disable bti off

Sqlplus annotation BUG: www.2cto.com [SQL] 23:24:13 @> conn oe/oe @ cry is connected. 23:24:25 OE @ cry>/* test */23:24:38 OE @ cry>/* test */select count (*) from orders; COUNT (*) ---------- 105 used time: 00: 00: 00.05 you can directly write

Insert into select batch loading error solution when using insert into select to batch load data, the entire insert statement cannot be executed because some data does not meet the loading conditions, all rollback. In this case, you can use the DML

A simple oracle network configuration is provided below for the Simple Network Configuration of Oracle, and it is an effective SQL code www.2cto.com # sqlnet. ora SQLNET. AUTHENTICATION_SERVICES = (ETS) SQL code # tnsnames. ora

Oracle tablespace query settings select s. tablespace_name, round (sum (s. bytes/1024/1024), 2) as Space, round (sum (s. bytes/1024/1024)-nvl (d. fr, 0), 2) used, nvl (round (d. fr, 2), 0) free, decode (round (sum (s. maxbytes/1024/1024/1024), 2), 0,

When creating a database using the Oracle multi-Table cascading deletion method, all foreign keys are not cascade to prevent accidental deletion errors. I don't know when I entered a batch of wrong data, but I used the software to automatically

Oracle 10g flash back function 1. version number. Www.2cto.com SQL> select * from v $ version; BANNER implements Oracle Database 10g Enterprise Edition Release 10.2.0.1.0-ProdPL/SQL Release 10.2.0.1.0-ProductionCORE 10.2.0.1.0 Production TNS for

The use trap OF the INSTEAD trigger for views associated with more than two tables, Oracle cannot tell which table should be updated, and the INSTEAD trigger meets our requirements for the view DML, the display tells Oracle which table www.2cto.com

Modify existing data columns in oracle, if some columns of existing data, if you want to change the type, sometimes it is more troublesome, will appear: ORA-01439: column to be modified must be empty to change datatype modification method: