deleting objectsyou can use the delete statement
Deleting Objects
You can use the DELETE statement to eradicate objects from an object table. To eradicate objects selectively, you use the WHERE clause, as shown below:
BEGIN
DELETE FROM persons p
WHERE p.home_address = '108 Palm Dr';
...
END;
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using operator refyou can retrieve refs by using the operator ref that like value takes as its argument a correlation variable in the illustration
using operator derefyou cannot navigate through refs within the plsql procedural statements rather than you should use the operator deref in the sql
inserting objectsyou can use the insert statement to add objects to an object table in the illustration below you insert a person object into the
updating objectsto change the attributes of objects in an object table you can use the update statement as the illustration below showsbeginupdate
deleting objectsyou can use the delete statement to eradicate objects from an object table to eradicate objects selectively you use the where clause
dynamic sqlthe most plsql programs do a predictable specific job for illustration a stored procedure may accept an employee number and salary
need for dynamic sqlyou need dynamic sql in the situations as follows1 you would like to execute a sql data definition statement like create a data
parameter modesyou do not require to specify a parameter mode for the input bind arguments those used for illustration in the where clause as the
benefit of the dynamic sqlthis part shows you how to take full benefit of the dynamic sql and how to keep away from some of the common
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