Oracle

The above method is as follows: Export: Fang Yi: 1. Set oracle_sid first. 2. Find the bin directory. my options are D: \> Cd D: \ app \ Administrator \ product \ 11.2.0 \ dbhome_1 \ bin. 3. Execute exp Scott/root @ jxgl21 file = D: \ t. dmp

Yesterday, I downloaded three CDs for installing oracle92 from the Internet. At the beginning of the installation, the instructor encountered this error: areasqueries. I checked the following online, it is found that the directory of the source file

Remove auto-start from system boot: CD/etc/ Ls-l rc *. d You may get 7 directories, rc0.d, rc1.d,..., rc6.d and RC. D, and in some of them you may find the files like Ls-L * Oracle-Xe * Lrwxrwxrwx 1 Root 19 mar 17 K01oracle-xe-> ../init.

To do an oracle experiment, you need to import and export the view. Scott does not have the view, so you need to create it. If you create it directly with Scott, The ORA-01031: insufficient permissions is displayed as follows. SQL> grant create

(2) Another internal risk-user management and password Problems As a database administrator, Oracle databases use many methods to enhance the security of databases, including passwords and roles, permissions. Let's start with Dbsnmp: After a

Today, I wrote a database trigger script. During the update, the update is always unsuccessful, prompting a row that needs to continue executing the next sentence with the prompt "row number 9" You cannot enter a semicolon. The trigger itself has

1. blob Create Table Scott. myblob (ID varchar2 (50), data BLOB );Create or replace directory lobfiledir as 'f:/lobdir '; [A] PL/SQL insert blob DeclareA_blob blob;A_bfile bfile: = bfilename('lobfiledir', 'winter.jpg '); -- used to point to an

We will tell you about the default port numbers of SQL Server databases, MySQL databases, and Oracle databases. The following describes the default port numbers of SQL Server databases, MySQL databases, and Oracle databases, I hope you will be

------------------ SQL statement operations and help ---------------------------- view the help information of a command help show; -- View All system variable values show all; -- view the current user show user; -- view the SGA size show SGA; --

1. Are you familiar with databases sql2005 and Oracle? Sql2005 is a database product of Microsoft. It is an RDBMS database, which is generally used in some medium-sized databases and cannot be used across platforms. Oracle is a data product of

1. The oracledbconsoleorcl service cannot be started locally: You can stop the network. To start this service, the IP address of the local machine must be the same as the IP address used to create the database at the time. If the network is

Preface In the past decade, Oracle has become one of the world's most professional databases. For IT experts, it is to ensure that their company's productivity is improved by leveraging the powerful features of oracle. One of the most effective

Adjust Oracle Competition One of Oracle's advantages is that it can manage free space in each tablespace. Oracle is responsible for table and index space management, so that we do not need to understand the internal operations of Oracle tables and

The most basic data objects in Oracle databases are tables and views. Other data objects include constraints, sequences, functions, stored procedures, packages, and triggers. Database Operations can basically be attributed to operations on Data

Problem description: This is a scenario where the tablespace data files in the rollback segment are lost or damaged. Oracle cannot identify the corresponding data files. When you try to startup a data file, a ORA-1157, A ORA-1110, and possibly a

When you use the SQL language to publish a query statement to the database, Oracle will generate an "Execution Plan", that is, the data search scheme through which the statement will be executed, whether to scan the entire table or search by index.

Currently, the connection pool of jdbc2 is only an interface and is not actually implemented. jdbc3 is under development. It is reported that the connection pool is supported, but jdbc3 uses the JNDI technology, the configuration of the connection

It is undeniable that FreeBSD is one of the best operating systems, but the lack of support for large commercial databases has hindered FreeBSD's entry into high-end and enterprise applications. Oracle, as the database's leading geese, if we can

Compared with Oracle 9i, the service name and EM configuration methods of Oracle 10g are different. The writing process is convenient for you to review and other children's shoes.   1. Install Oracle 10 Gb all the way to the default next step. I

In the WHERE clause, you can use the like clause with wildcards for columns of the datetime, Char, and varchar field types to select data records that are similar to.... The following are available wildcards:% Zero or multiple characters_ Any single