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;
Expected delivery within 24 Hours
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
1928878
Questions Asked
3,689
Active Tutors
1453647
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question: How do glaciers acquire their load of sediment?
Question: Double-click the Himalayas placemark. What type of convergent boundary separates India and Tibet?
What is an ephemeral stream? View Available Hint(s) for Part A a stream in a dry area that exists on a regular basis a stream in a dry area with a network
Question: Which two geologic processes result from vertical circulation within the mantle?
How do glaciers acquire their load of sediment? Sediments and rocks fall off the cliffs surrounding the glacier and move through crevasses
How do fjords relate to glacial troughs? View Available Hint(s)for Part A A glacial trough leads to a fjord, which is the location of the terminus of the glaci
Problem: How did Vine and Matthews relate the seafloor-spreading hypothesis to magnetic reversals of the Earth's poles?