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Introduction
Oracle 9i- it was made public in the year 2001 with over 400 features, and graphics, it has merged the traditional business with modern internet applications (both business model and their operation).It is known for its strength in offering performance, scaling, and availability in hosted services exhibited in any software. A real application clusters is a computer-cluster database. In Oracle 9i, Real Application Clusters substituted the Oracle Parallel Server.
Oracle 10g- This database became the first RDBMS release from Oracle Corporation after Oracle 9i that advanced Grid computing technology. Besides these multiple features and advancements, Oracle 10g released resolved the bugs reported from the previous edition of databases like oracle 9i. Major language features included continuing expression functionality support, flashback operations support; recycle bin, and performance improvements. With the rising fame of 10g versions first release, when it became successful then oracle released second edition of 10g in 2005.
Oracle 11g- This is latest released databases of oracle, it was released in 2009. Since its inception, Oracle 11g has become the topic of discussions amongst the database developers and engineers, corporate that are actually utilizing and advancing their operation. Oracle 11g has well equipped with the performance oriented features, language enhancements and logical programming recommendations.
CLOSE Statement The CLOSE statement allows the resources held by a cursor variable or open cursor to be reused. No more rows can be fetched from the cursor variable or closed
Control Structures The Control structures are the most important PL/SQL extension to the SQL. Not only does PL/SQL let you manipulate Oracle data, it lets you process the data
Assignment of Variable - Updating a Variable Syntax: SET SN = SID ('S2'); This can obviously be read as "set the variable SN to be equal in value to SID ( 'S2' )".
Parameter and Keyword Description: SQL: This SQL is the name of the implicit SQL cursor. %FOUND: This attribute results TRUE if an INSERT, DELETE, or UPDATE state
Opening a Cursor Opening the cursor executes the query & identifies the result set that consists of all rows that meet the query search criteria. For the cursors declared usin
This is a Customer Management project. Customer data is presented in a text file. The program will load this text data into its DB columns. The data mapping is user definable. User
Updating Variables For assignment, SQL uses the key word SET, as in SET X = X + 1 (read as "set X equal to X+1") rather than X: = X + 1 as found in many computer languages.
Using a join on 3 tables, select 5 columns and 10 rows from the 3 tables without the use of a Cartesian product Query: SELECT E.LAST_NAME, E.FIRST_NAME, S.BUILDING, S.BRAN
Object Types An object type is a user-defined complex datatype which encapsulates the data structure along with the functions and procedures required to manipulate the data. Th
Tables within a Table - SQL Figure here is an exact copy of the one in the theory book and as before it is just an alternative way of representing some of the information con
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