Oracle

before connecting to the database server, first, you must enable two Oracle-related services in the control panel-Administrative Tools-service of Windows: oracleorahome92tnslistener (listener service) and oracleservicechstone (instance service ), if

Create or replace procedure UpdatePhoto (v_id in integer, v_binaryPhoto in blob) isBeginUpdate usersinfo u set u. photo = v_binaryPhoto where u. id = v_id;End UpdatePhoto; /   Using System;Using System. Collections. Generic;Using System.

I was lying in bed last night watching Oracle (recently studying this). My roommate gave me a question and asked me to try it. The questions are as follows: If the table structure is as follows, select the information of the top three persons whose

After Oracle Db Provider is installed, the path of Oracle. DataAccess. dll is D: \ app \ Administrator \ product \ 11.2.0 \ client_1 \ ODP. NET \ bin \ 2.x.The following shows how to use OleDb, msdaora, System. Data. OracleClient. OracleConnection,

We believe that everyone is familiar with Membership. A set of user management tools released in the net 2.0 era. The problem is that Microsoft's official Membership is only made for SqlServer. If your system needs to use Mysql or Oracle, it will

Create or replace function idcard15to18 (card varchar2) return varchar2 is Type tiarray is table of integer; Type tcarray is table of char (1 ); Results varchar2 (18 ); W tiarray; -- number Array A tcarray; -- character array S integer; Begin If

 Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->1 /// 2 // insert data 3 /// 4 Public void insert (users _ users, idbtransaction transaction) 5 { 6 // create the inserted SQL statement 7

For convenience, the following simple model is created and some test data is constructed:In BSS,-- Customer data tableCreate Table MERs(Customer_id number (8) Not null, -- customer IDCity_name varchar2 (10) Not null, -- CityCustomer_type char (2)

Original is located in: http://www.itpub.net/viewthread.php? Tid = 610297 & extra = page % 3D2% 26amp % 3 Bfilter % 3 Ddigest & page = 2 Splits 'a | B | C' stringABC Create or replace function f_test (var_str in string) return t_ret_table isVar_out

========================================================== ======================== Author: hanjs (http://hanjs.itpub.net) Posted: Category: oracle Source: http://hanjs.itpub.net/post/28217/260065 -----------------------------------------------------

Address: http://www.itpub.net/274842.html If the database is Oracle, you can use the 10046 event of Oracle to track SQL statements. The procedure is as follows: 1. First obtain spid, Sid, and serial #. Machine is your machine name. SQL> select B.

Oracle 11g 2nd is installed and connected directly. The user name scott is locked. It seems that the scott user needs to be unlocked first. Open SQL plus with the following prompt: Enter the User name: (enter the content here and press Enter)

For rownum, it is the number of the row returned from the query that is sequentially allocated by the Oracle system. The first row is allocated 1, and the second row is 2, this pseudo field can be used to limit the total number of rows returned by

1 private void button#click (Object sender, system. eventargs e) // upload 2 { 3 int intdoclen = file1.postedfile. contentlength; 4 byte [] docbuffer = new byte [intdoclen]; 5 stream objstream; 6 objstream = file1.postedfile. inputstream; 7

-- Fixed ArrayDeclareType type_array is varray (10) of varchar2 (20 );Var_array type_array: = type_array ('ggs ', 'glast', 'wsb', 'csl', 'dd', 'bb ');BeginFor I in 1 .. var_array.count loopDbms_output.put_line (var_array (I ));End loop;End; --

13.Calculate the number of records In contrast, count (*) is slightly faster than count (1). Of course, if you can search by index, the index column COUNT is still the fastest. For example, count (EMPNO)   (Press:In CSDNForum,I have had a very

  1.Select the appropriate ORACLEOptimizer   There are three optimizer types in ORACLE: A. RULE (RULE-based) B. COST (COST-based) c. CHOOSE (selectivity)   Set the default optimizer. various declarations of the OPTIMIZER_MODE parameter in the ora

Oracle 10 Gb database is an object-oriented RDBMS consisting of Oracle Database and Oracle routine. To install the database server, copy the following parts or files from the installation disk to the folder structure of the computer's hard disk, and

Recently, we found these strange table names in oracle. After searching online, we found that it was the oracle10g recycle bin function. Instead of deleting the table completely, we put the table into the recycle bin, at last, a bunch of strange

Various Processes in the Oracle system can be divided into two categories: 1. the user process that executes the application or Oracle tool code ). 2. The Oracle process that executes the Oracle database server code ). This includes server process