Updating multiple rows in sql
TO_CHAR(city_population(i))); 28 i := city_population.NEXT(i); 29 END LOOP; 30 END; 31 / Population of Megalopolis is 1000000 Population of Midland is 750000 Population of Smallville is 2001 PL/SQL procedure successfully completed.For examples, see Using Multidimensional Collections. Topics: An associative array (also called an index-by table) is a set of key-value pairs.Each key is unique, and is used to locate the corresponding value. Using a key-value pair for the first time adds that pair to the associative array.
When you access a nested table, the database joins the nested table with its store table.
An associative array is intended for temporary data storage.
To make an associative array persistent for the life of a database session, declare the associative array (the type and the variable of that type) in a package, and assign values to its elements in the package body.
When you declare an associative array that is indexed by strings, the string type in the declaration must be When you pass an associative array as a parameter to a remote database using a database link, the two databases can have different globalization settings.
When the remote database uses a collection method such as , it uses its own character order, which might be different from the order where the collection originated.
A varray has a maximum size, which you specify in its type definition.