Oracle

1.1.1. RMAN-08138Date: 2014-05-21 14:36Environment: Test environment"Scenario description"On the test machine, when you use Rman to delete archived log files, you are prompted to warning a warning and the archive log cannot be deleted."Error Message"

In Oracle, if you commit the modification incorrectly and then want to see the value before the change, you can use the query flashback.The query flashback can be based on a time value or a system change number (SCN).To perform a flashback operation,

A Process classification:1. Server process: Completes the work according to the customer request. such as receiving and processing the SQL statements sent by the application2. Background processes (background process): Starts with the database and

Command statements in three modes and key differences (red font markers) are as follows:1. Full-Library mode export / import :Exp ' user/[email protected]/oracle_sid ' file= '/data/backup/datafile1.dmp ' log= '/data/backup/datafile1_exp.log ' Full=y

1. CPU consumptionSELECT A.cpu_time,--cpu time one out of 10,000 (μs)A.optimizer_mode,--Optimization methodA.executions,--Execution timesA.disk_reads,--Read Disk countA.sharable_mem,--The amount of memory occupied by the shared

Server-side:Listener LsnrctlStart monitoring lsnrctl start [LISTENER]View monitor lsnrctl status or LSNRCTL serviceC:\Documents andSettings\Administrator>Lsnrctl Servicelsnrctl for +-bitWindows:version10.2.0.1.0 -Production on +-Copyright May (c)19

drop table book; --CREATE TABLE BookId varchar2 (4) primary key, name VARCHAR2 ( -) ); --Creating a sequence Create sequence book_seq start with1Increment by1; --creating a trigger Create or replace trigger Book_trigger before insert on book

Just learned the basics of Oracle, so I want to find some SQL problems to practice practiced hand, so I chose this 50sql statement, because the found version is not Oracle, so try to use Oracle to achieve.This blog post is mainly to record the 50

It is difficult for programmers who have worked with SQL Server to understand the table space of Oracle. Let me just say it briefly,The table space in Oracle is equivalent to an instance in SQL Server, and the user is equivalent to a library in SQL

PL/SQL based triggers and packagesPackage/* Packages : Encapsulation of related stored procedures, functions, variables, cursors, and exceptions There are declarations and the composition of the subject Advantages:1. Modular; 2. Easier application

Just contact Oracle, in the learning process encountered a lot of problems, this article will collect my problems and how to solve.Error one: Ora-28009:connection as sys should be as SYSDBAWorkaround: User name: sys, password: password, host string:

1 Definition:           Hierarchical query using tree traversal, go through the data collection with tree structure, to get the tree hierarchical Relationship report method           Tree-structured parent-child relationship, you can control the

In use. NET when using OracleParameter for Oracle database operations, because Oracle and SQL Server have different syntax for query parameterization,When you operate SQL Server, you are using @ParameterName.And Oracle is using :P arametername .and

--Create Tablecreate table Technologycompany (ID VARCHAR2 (+) default sys_guid () not NULL, Flowid VARCHAR2 ( (), Conpanyid number, iscommunication VARCHAR2 (Ten)) tablespace USERS pctfree Initrans 1 Maxtrans 255 Storag E (initial 64K minextents 1

1. PhenomenonEngineering for Spring+mybatis+xfire,webservice Engineering services, the implementation of interface data functions2. Repair methodAfter a variety of attempts:1. Re-deploy the project without fruit2. Redeploy Tomcat without fruit3.

SELECT a.table_name English name,A.tab_comments Chinese name,a.column_id serial number,A.column_name English name,A.comments Chinese name,B.primary_key primary KEY,substr (A.data_type,1,instr (A.data_type, ' (')-1) data type,Case when substr (A.data_

1. Table and Data Recovery 1. Query the deleted table from the Recycle BinSelect Object_name,original_name,partition_name,type,ts_name,createtime,droptime from RecycleBin;2. Execute the table's recovery statementFlashback table TableName to before

Here is an error log for me to install oracle11g to win7: Checking operating system requirements...Results: 5.0, 5.1, 5.2, 6.0Actual result: 6.1 I changed 10 Gbit/s and 11 Gbit/s from 32bit to 64bit, and finally found a solution ......   Did

Application connection test database times ORA-12516: TNS: listener cocould not find available handler with matching protocol stack Check the listening log file and find a large number of TNS-12516 errors

In a general database, the DATE field only indicates the DATE, excluding the DATE information. In an Oracle database, the DATE data type includes the DATE and time. For different Oracle jdbc driver versions, there are some differences in the