more than once synonym

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oracle--sequence, index, synonym

I. Common database objectsSecond, sequenceSequence: A database object that can be used by multiple users to produce unique values Automatically provide a unique value Shared objects Primarily used to provide primary key values

Oracle: Other data Objects (sequence, index, synonym)

1. Sequence (sequence)sequence : A collection of database objects that can be used by multiple users to produce unique valuesAutomatically provide unique valuesShared objectsMainly used for primary key self-incrementLoading sequence values into

Precautions for using Oracle9i Database

The Oracle HTTP Server in Oracle Database 9.2.0.1.0 has the following changes: I. About the Apache JServ Process The maximum number of Apache JServ processes supported by Oracle HTTP Server has been increased from the default value 25 released by

Oracle Learning Notes (iii) _oracle

First, create and manage tables1. CREATE TABLE syntax CREATE TABLE table name (column datatype [default Expr][,column ...]) The description of default constraint is slightly 2, use the subquery to create the table CREATE TABLE Table name As SELECT *

Oracle Study Notes (3)

1. create and manage tables1. Create Table syntaxCreate table Name (column datatype [default expr] [, column...])Default Constraints2. Create a table using subqueryCreate table NameAsSelect * from u tableIi. modify a table1. Add a new columnOracle:

Nine major considerations for using the Oracle9i database

oracle| Data | database Nine major considerations for using the Oracle9i database Oracle HTTP Server in the 9.2.0.1.0 version of Oracle database has the following changes: First, about the Apache Jserv process The maximum number of Apache Jserv

Considerations for using the Oracle9i database

oracle| Data | The Oracle HTTP server in the 9.2.0.1.0 version of the database Oracle database changes as follows: First, about the Apache Jserv process The maximum number of Apache Jserv processes supported by Oracle HTTP Server has been

Oracle transactions and common data objects

The relevant knowledge points of this content we introduced some of them when we studied sqlserver2008r2, including: Transactions, indexes, views, etc. So today we are learning to implement these important things on Oracle for database

Oracle SQL Foundation (v): Data definition language (create and manage sequences, indexes, synonyms)

Many applications require a unique number to be used as the primary key value, so you can build code in your application to handle this requirement, or you can use a sequence to produce a unique number. If you want to improve the performance of some

Oracle (1) --) Detailed description of database objects (Text explanation, first of all a small understanding ~)

Oracle (1) --) Detailed description of database objects (Text explanation, first of all a small understanding ~)---- Database object: a set of logical structures ---- 1. Synonym: alias of an existing object/* function: simplify the SQL statement to

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