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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.
Based on the EMPLOYEE table created in Assignment #1, write a PL/SQL anonymous block that accepts an employee ID from the user input and finds whether the employee ID is in the EMP
Using Subqueries A subquery is a query (typically enclosed by parentheses) that appears within another SQL data manipulation statement. If evaluated, the subquery gives a va
Write a stored procedure that accepts the post code in which the customer resides as the input parameter. The procedure should then use an explicit cursor to display comprehensive
ROWID The ROWID returns the rowid (binary address) of a row in the database table. You can use the variables of the type UROWID to store rowids in a readable format. In the il
1- You can check attribute names from each table in DBF11 by running for example: desc dbf11.Member; desc dbf11.Agent; desc dbf11.Producer; Because some attribute names in
Natural Join - SQL In the absence of NATURAL JOIN Example has to be replaced by something rather more longwinded, as shown in Example. Example: Joining IS_CALLED and IS_EN
Subprograms The PL/SQL has two types of subprograms known as the procedures and functions that can take parameters and be invoked. As the following example represents, a subp
Explicit Cursors The set of rows returned by the query can include zero, one, or multiple rows, depending on how many rows meet your search criteria. Whenever a query returns
Parameter and Keyword Description: table_reference: This identifies a table or view which should be available when you execute the INSERT statement, and for that you sho
Using INNER JOIN INNER JOIN is used to retrieve the data from all tables listed based on a condition of equality listed after keyword ON. If the condition is not meet, rows ar
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