Oracle

You must start the iSQLPLus Service.C:/Documents and Settings/admin> isqlplusctl startStart the listening service when logging on.C:/Documents and Settings/admin> LSNRCTL startLogon address:Http: // localhost: 5560/isqlplus---The above is helpful to

Http://www.cnblogs.com/flyingis/archive/2008/01/22/1048354.html The direct connection methods are basically the same. I wrote an article "ArcIMS 9.2 direct connection to ArcSDE for SQL Server 2005 Express". The following lists the direct

Import Java. SQL. connection; Import Java. SQL. drivermanager; Import Java. SQL. resultset; Import Java. SQL. sqlexception; Import Java. SQL. statement; public class oracletest { Public static void main (string [] ARGs) { // string servername =

1. in Oracle, any arithmetic expression containing null values calculates the result space-time value. But for character Operators |, because the method for processing zero character values before the Oracle object is the same as the method for

I. Databases A database is a collection of data, while Oracle is a software system that manages these data sets. It is an object-relational database management system.   Ii. tablespace A tablespace is the logical ing of ORACLE data in a physical

1. Create a table Create Table test_users ( user_id varchar2 (10) Not null, name varchar2 (10) Not null, password varchar2 (20) not null ) 2. Create a stored procedure Create or replace package display_users_package is type search_results is ref

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

Note: 1. You must log on as an administrator; 2. the sequence_owner must be in upper case, regardless of whether your user name is in upper case. Only uppercase letters can be recognized. -- View All sequences of the current user select

I personally think it is also necessary for our developers to have a deep understanding of the Oracle startup principles. At least we can have a deeper understanding of Oracle. After all, Oracle has a lot of knowledge. Okay, no nonsense. We can

PLSQL remote connection to Oracle 10g1. Search for the following files on the machine where the Oracle server is installed, Files on the Oracle serverOCI. dllOcijdbc10.dllOciw32.dllOrannzsbb10.dllOraocci10.dllOraociei10.dll (the server may not exist.

This article is based on a database provided by Oracle. The database contains the employee table EMP. Department info table Dept. Employee payroll summary The table structure of the three tables is as follows: I. Basic query statements 1.

Concerns and expectations of eight programmers for Oracle's sun acquisition   On the evening of March 13, Beijing time, a major news came from the United States. Oracle bought sun at $9.5 per share, with a total transaction value of more than $7

TypeTt_typeIs Table Of Varchar2(32)Index By Binary_integer;  --Use","Converts the split string to an array and returns the number of arrays, -- Lei E-mail: Landgis@126.com, yanleigis@21cn.com 2002.06.03 prepared FunctionToarray (liststrIn Varchar2

Create Or Replace ProcedureModifychartovarcharIs -- CursorC1IsSelectT. table_name, T. column_name, T. data_lengthFromAll_tab_columns tWhereT. Owner = 'landuser'AndT. data_type = 'Char'AndT. table_nameIn(Select At.

(Environment: Oracle 9i. All statements are executed under sqlplus)   1. query invalid objects Queries the total number of invalid objects  Select count (*) from dba_objects where status = 'invalid ';Number of invalid objects in a category

The specific code is as follows:   Main form: A few users concurrently upload exp.exe Try { // open the export form sanxiaexpdlg expdlg1 = new sanxiaexpdlg (); expdlg1.username = usernamebox. text; expdlg1.password = passwordbox. text;

Xmltype query operations:Example of the query object: Table Name: etab. The first column is varchar2 () and the second column is xmltype. One of the rows is xmlcol. The value of the ID field is: the value of the aaxmlcol field is: 02B BRA

1. Set autotrace Parameters Set autotrace off ---------------- do not generate autotrace Report, which is the default modeSet autotrace on explain ------ autotrace only displays the optimizer execution path reportSet autotrace on statistics --

Print the data in the table into the SQL statement of the insert statement Create or replace procedure print_insert (v_tname varchar2, v_cbatch number default 0)/*V_tname name of the table to be output SQL Author: xzh2000@hotmail.comV_cbatch output

Create or replace function getbigmoneystr (money in number) return varchar2 isTmp_str varchar2 (20 );Money_str varchar2 (20 );Val_j varchar2 (20 );Len_j number;K number;I number;J number;M number;Result varchar2 (40 );Type my_type is varray (20) of