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Tip Bank

Customizing Column Name and Width

SQL*Plus uses column names as default column headings while displaying query results. You can customize your own column heading and width with the help of following commands. To assign a

Improving Large Strings’ Performance

Certain applications make use of very long strings. For example, a single string may contain generated HTML pages, a chapter of a book, a textual database and so on. Usually,

Exception Restrictions when Overriding

When you extend a class and override a method, Java insists that the new method cannot be declared as throwing checked exceptions of classes other than those that were declared