how to create relationship in oracle database

Tags: TTS OracleThe relationship between TTS and character sets-requires that the database character set of the source and destination must be the same, and the national character set must be the same.Imp sys/as transport_tablespace=y datafiles= C:\oracle\product\10.2.0\oradata\a\test01.dbf ' file=c:\tts_test.dmp log =c:\imp_tts.logImp-00058:

Create Table space script in oracle and create script in oracle Preface: Previously, we used oracle tools to generate tablespaces. Today we see a more convenient and fast way to use database scripts. /* Divided into four step

Find out the main backend of ASP. NET 2.0 "ins"-aspnetdb Database relationship diagram, tables, and views (1) Basic Tables and independent tables Aspnetdb is hidden in the four plug-ins of ASP. NET 2.0"(Sqlmembershipprovider,Sqlroleprovider,Sqlprofileprovider,Sqlpersonalizationprovider)Then, from time to time, the ghost SQL database appears in your app_data dir

), ('python','08:30:00', 4), ('Linux','08:30:00', 1), ('Linux','08:30:00', 7);Operation Result:Three, many-to-many (multiple records corresponding to multiple records)Book and author (we can create a second table to store books and author two-sheet relationships)To set the book_id and author_id as a joint uniq

The solution is as follows: 1. Set the compatibility level to 90 (2005 to 90) USE [master] GO EXEC dbo. sp_dbcmptlevel @ dbname = 'database name', @ new_cmptlevel = 90 GO Or select the database you want to restore, right-click it, select Properties-> options-> Compatibility Level, select sqlserver2005 (90), and then click OK, When you expand the "database

The database relationship View bitsCN.com cannot be displayed. The solution is as follows: 1. set the compatibility level to 90 (2005 to 90) USE [master] GO EXEC dbo. sp_dbcmptlevel @ dbname = 'database name', @ new_cmptlevel = 90 GO Or select the database you want to restore, right-click it, select Propertie

aspnetdb is hidden in ASP. after the four plug-ins of NET 2.0 (sqlmembershipprovider, sqlroleprovider, sqlprofileprovider, and sqlpersonalizationprovider), the ghost-like SQL database appears in your app_data directory from time to time. In fact, there is nothing magical about it, I waited for the common saying to go in and see it. However, if we want to write a custom provider, We have to carefully study the vendor, because most of the business logic

How to use workbench to export the mysql database relationship diagram? for the code farmers, please refer to 1. open mysql workbench and select "Create EER Model From Existing Database" in the second column under "Data Modeling" in the middle of the homepage "; 2. in "Stored Connection", select "Manage Stored Connect

student VALUES (0, ' Red gram ', ' Male '); INSERT into student VALUES (0, ' orange gram ', ' Male '); INSERT into student VALUES (0, ' Blueco ', ' Male '); INSERT into student VALUES (0, ' green gram ', ' Male '); DROP TABLE teacher_student; CREATE TABLE teacher_student (id int PRIMARY key auto_increment, Tid int, sid int, FOREIGN KEY (tid) REFERENCES teacher (t_i d), FOREIGN KEY (SID) REFERENCES student (s_id));INSERT into Teacher_student VALUES (

How to Create tablespaces and users in oracle and create tables in oracle1. First, if a user exists Drop user username cascade; 2. if it cannot be deleted, the current user may be in the connection status. You can find the session Select username, sid, serial # from v $ session where username = username; Alter system kill session 'sid, serial #' 3. If you want to

Label:1. Trigger, database trigger action. When the database is complete,Delete the main table after the sub-table, connect the database too many times, performance estimation is not good. 2. Cascade Delete When you create a table, the B table is defined as follows: CREATE

Tags: style blog http color OS SP data on 2014Today, the company gave a task, a project because the data is too large, causing SQL Server 2012 to run with a lot of memory, so to separate the previously infrequently used data. Ask to write a script that requires:1. Can get the table structure in the original database, the primary key is consistent. The constraint Relationship between table and table (foreign

What is the Oracle character set? How to view the database character set? Explains how to modify the character set of oracle.1. What is the Oracle character set? The Oracle character set is a collection of symbols for the interpretation of byte data. It can be divided into d

ClusterwareA) crsd--is responsible for high-availability operations of the cluster, and the managed CRS resources include databases, instances, monitors, virtual ip,ons,gds, or other operations, including startup, shutdown, monitoring, and failover. The process is managed and started by the root user. CRSD If there is a failure, it will cause the system to restart.b) CSSD, manages the relationship of each node for inter-node communication, and the no

Data | database-building a database Create DATABASE test; Go --Establish table customers CREATE TABLE Customers ( ID int identity (1,1) not NULL, Name varchar (15), Age int, Primary KEY (ID) ); Go --Establish the table orders CREATE