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Parameter and Keyword Description:
collection_name:
This keyword identifies the index-by table, nested table, or varray formerly declared within the present scope.
cursor_variable_name:
This keyword a PL/SQL cursor variable formerly declared within the present scope. Only the value of the other cursor variable can be assigned to the cursor variable.
object_name:
This keyword identifies an object (instance of the object type) formerly declared within the present scope.
record_name:
This keyword identifies a user-defined or %ROWTYPE record formerly declared within the present scope.
record_name.field_name:
This keyword identifies the field in a user-defined or %ROWTYPE record formerly declared within the present scope.
table_name.column_name:
This refers to the table and column that should be accessible when the declaration is explained.
variable_name:
This keyword identifies a variable formerly declared in similar scope.
Datatype Conversion At times it is necessary to convert a value from one datatype to another. For e.g. if you want to inspect a rowid, you should convert it to a character stri
Using LOCK TABLE You use the LOCK TABLE statement to lock the whole database tables in the specified lock mode so that you can share or deny the access to them. For illustrati
Difference between 9i & 10G When Oracle releases any new databases then it are having some discrepancy with them. But 10G is having much difference than oracle 9i has. Oracle
Exception handling In the PL/SQL, a warning or error condition is known as an exception. The Exceptions can be internally defined (by the run-time system) or user defined. The
%ISOPEN The Oracle closes the SQL cursor automatically after executing its related SQL statement. As a result, the %ISOPEN forever yields FALSE.
Overview of control structures According to the structure theorem, any computer program can be written by using the basic control structures as shown in figure below. They can b
Data Types in SQL - Decimal DECIMAL, NUMERIC, REAL, FLOAT and various other terms for various sets of rational numbers. When these key words are specified for the declared typ
Bitmap Join Indexes - This feature will increase the performance and detains the size and format of your databases in data Character Semantics and Globalization -This featur
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Keyword and Parameter Description: table_reference: This specifies a table or view that should be accessible when you execute the DELETE statement, and for that you must
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