how to create table in oracle database

Technorati label: before creating a table in PL/SQL, determine whether the table exists. Delete the execution statement of the table if any. Since PL/SQL is used for Oracle client operations, since SQL 2005 was used to execute "before creating a table, determine whether the

the columns in the Emp_copy table as in the EMP table-the same name, the same data type definition.Second, any SELECT statements that can be emitted in sql*plus can be placed in the CREATE table as SELECT statement, and Oracle automatically obtains the data selected from th

asp.net|oracle| Create | data | Databases create tables for Oracle databases: Dim myConnectionString as String Dim MyConnection as OleDbConnection Dim MyCommand as OleDbCommand Dim Mycreatesql as String myConnectionString = "provider= ' oraoledb.oracle.1"; User id=[user ID];D ata source=[data Source]; Extended properti

To create a table for an Oracle database: Dim myConnectionString as String Dim MyConnection as OleDbConnection Dim MyCommand as OleDbCommand Dim Mycreatesql as String myConnectionString = "provider= ' oraoledb.oracle.1"; User id=[user ID];D ata source=[data Source]; Extended properties=; Persist Security info=true; Pas

Instance: To create a userinfo database table: Of course you can write this: drop table USERINFO CREATE TABLE USERINFO ( Englishname varchar (30), Chinesename varchar (30), Sex varchar (10), Age int, Birthplace varchar (100), Bi

Instance:Create a USERINFO database table: Of course you can write it like this:Drop table USERINFOCreate table USERINFO(EnglishName varchar (30 ),ChineseName varchar (30 ),Sex varchar (10 ),Age int,BirthPlace varchar (100 ),BirthDate date default sysdate)However, there is a problem:If USERINFO does not exist before, d

Your database may already have the Scott/tiger schema. Classic installation usually includes this mode, but does not require the database to have this component. The Scott example mode can be installed under any database account. Using the Scott account has no special significance. If you are happy, you can also install the EMP/DEPT

Label:Under Windows, you can use the wizard to create a database step-by-stage, noting coding.Windows connects to a DB instance (otherwise it defaults to one instance):Set Oracle_sid=test--Login to create table space and user who can manipulateSqlplus/as Sysdba;--Create

Database Optimization-create and classify oracle table partitions When the amount of data in a table increases, the speed of data query slows down, and the performance of applications degrades. In this case, you should consider partitioning the

Database Optimization-create and classify Oracle table partitions When the amount of data in a table increases, the speed of data query slows down, and the performance of applications degrades. In this case, you should consider partitioning the

Tags: Grant dmp autogrow Database Limited unlock revoke from * * *--Create TABLE space and database files and default tablespace sizeCreate tablespace tablespace_test datafile ' E:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\DataBase_Test.DBF ' size 200m; --Set up automatic

details, visit http://blog.csdn.net/tianlesoftware/archive/2009/10/23/425155.aspx.) Then, when installing the Oracle database, we will have a sysdba user. For example, the user name and password are Scott/orcl. In this case, we need to create a normal user and use this user to import the SQL script of the table to th

Label: 1. CREATE TABLE Space Create Tablespace Ts_aw Logging DataFile ' d:\app\Administrator\product\tablespace\ts_aw.dbf ' Size 10M Autoextend on Next 5M MaxSize 20480M; 2. Create user Create user HB identified by HB Default Tablespace Ts_aw; 3, to the user authorization li

1. CREATE TABLE SpaceCreate Tablespace Ts_awLoggingDataFile ' d:\app\Administrator\product\tablespace\ts_aw.dbf 'Size 10MAutoextend onNext 5MMaxSize 20480M;2. Create userCreate user HB identified by HBDefault Tablespace Ts_aw;3, to the user authorization limitGrant CONNECT,RESOURCE,DBA to HB;4. Create a DirectoryCreate

OracleDatabase creationObject TypeThe operation is actually similar to the operation for creating a table, but the object type does not actually allocate space for the stored data. In addition, the object type also has attributes and methods. This article mainly introduces the Oracle object types andObject Type tableNext we will introduce some of the knowledge. Simple Object Types without methods: CRE

Label:/* divided into four steps *//* Step 1th: Create a temporary tablespace */Create temporary tablespace contract_tempTempfile ' D:\oradata\contract_temp.dbf 'Size 50mAutoextend onNext 50m maxsize 20480mExtent management Local;/* Step 2nd: Create a data table space */Create