Oracle

This problem occurs after the database is installed today. I searched the internet and found many posts to solve this problem,SQL> startupORA-01078: failure in processing system parametersLRM-00109: cocould not open parameter file

Environment: Oracle10g, Red Hat 4, Oracle running in archive mode. Scenario: Restore unbacked data files. Procedure:1. Create a tablespace testts, create a table, and insert some data.SQL> create tablespace testts datafile

1. OriginWhen the oracle database field value is less than 1 decimal point, the char type is used for processing, and the 0 before the decimal point is lost.For example, 0.35 is changed to. 35.2. Solution: Use the to_char function to format the

Software used: linux AS 4 oracle-instantclient-basic-10.1.0.4-1.i386.rpm oracle-instantclient-devel-10.1.0.4-1.i386.rpm php 4.4.2 httpd-2.2.0.tar.gz or httpd-2.0.55.tar.gz oracle version is 10.1.0.3 truly successful installation, connection

In oracle, the comment on command is used to describe tables or fields. The syntax is as follows:COMMENT ON{TABLE [schema.]{Table | view}| COLUMN [schema.]{Table. | view. | materialized_view.} column| OPERATOR [schema.] operator| INDEXTYPE [schema.]

When I was dealing with the problem in CSDN yesterday, I found a syntax connect_by_root, which was visible and never seen before. I often used connect by, so I opened the document and learned it again. First, let's look at SCOTT's data in the

  I have some questions about Oracle10g learning. Now I want to sort out my ideas.   There are two parts:   The first part is the relationship between permissions and roles and users:       Permission refers to the user's permissions to access the

  Instance-related files include: · Parameter file: these files tell the Oracle instance where to find the control file and specify some initialization parameters that define the settings of a memory structure. · Trace file: this is usually a

This function was unavailable 10 Gb ago. After deletion, it is unavailable and can only be recovered from backup.   # Recording the executed operations in the file, that is, the screen output content SQL> spool '/home/oracle/drop.txt'     # Delete

  -- Get the current system time SELECT SYSDATE FROM DUAL       SELECT TO_CHAR (SYSDATE, 'yyyy-MM-DD HH24: MM: ss') from dual -- 2011-10-19 09:10:24. 24 hours     SELECT TO_CHAR (SYSDATE, 'yyyy-MM-DD HH: MM: ss') from dual -- 2011-10-19 09:10:24. 12

  Oracle provides Fusion Middleware Control 11g, which uses the EM Console provided by it to monitor the performance of Web applications (such as adf bc application modules, task flows, and Servlets ). This is a good tool for monitoring the running

  Today, I encountered a listener startup problem. The problem was that there was no problem when oracle was installed on the original machine. After the machine name was changed, the listener could no longer be started, the problem is located due

Demonstrate the impact of PCTUSED and PCTFREE on data operations in the PCTFREE experiment. As pctfree increases, the fewer block-mounted records and the more data blocks occupied. SQL> create table test as select rownum as id from dual connect by

What is the relationship between an Oracle Table and a Segment? The two are still confused. Let's talk about the association between them: first, we need to understand their concept: tables are logical objects, and segments are physical storage

Oracle partitions tables during data warehouse construction, there is often a large amount of data. In a short period of time, the data volume in the table is limited, and the query performance is still acceptable. However, as time passes, the data

Oracle flashback 120179i flashback queryoracle 10g flashback table/flashback drop/flashback database/flashback version query/flashback transaction queryoracle 11g flashback data archive Before oracle 9i, if dbas want to recover some data which is

Oracle supports a new data type named xmltype from 9i. It is used to store and manage xml data and provides many functions, it is used to directly read xml documents and manage nodes. The following describes some basic usage of xmltype. 1. create

ORACLE --- adding control files will be unfamiliar without any technical skills. ORACLE control files are crucial. Next I will write an article on how to add control files to ORACLE. First, view the information of the current control file: 1SQL>

A ORA-00471 Processing Method of a new service to the machine room, hardware is IBM X3850 X5, hardware configuration is good, memory has 128 GB. SA has installed the system (sule 32bit) and notifies me to install the database. Busy for half a day.

ORA-03113 error end-of-file on communication when executing the statement... solved the ORA-03113 end-of-file on communication channel error when creating view. the create view takes a long time. I checked sqlnet. ora found that I set the length of