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Operator PrecedenceThe operations within an expression are completed in a particular order depending on their precedence (priority). The table shows the default order of the operations from first to last (from top to bottom).
Table: Order of OperationsThe Operators with higher precedence are applied first. In the illustration below, both the expressions yield 8 as the division has a higher precedence than addition. The Operators with similar precedence are applied in no particular order.
5 + 12 / 412 / 4 + 5You can use the parentheses to control the order of the evaluation. For illustration, the expression below yields 7, not 11, as the parentheses override the default operator precedence:(8 + 6) / 2In the later example, the subtraction is completed before the division as the most deeply nested sub expression is always checked first:100 + (20 / 5 + (7 - 3))
Keyword and Parameter Description: boolean_expression: This is an expression which results the Boolean value TRUE, FALSE, & NULL. It is related with a series of statement
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Parameter and Keyword Description: dynamic_string: This is a string variable, literal, or expression which represents a SQL statement or the PL/SQL block. define_vari
Transaction context As the figure shows, the major transaction shares its context with the nested transactions, but not with the autonomous transactions. Similarly, If one aut
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Referencing Records Unlike the elements in a collection, that are accessed using subscripts, the fields in a record are accessed by name. To reference an individual field, you
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DBMS_PIPE: The Package DBMS_PIPE allows various sessions to communicate over the named pipes. (A pipe is a region of memory used by one of the process to pass information to
Defining and Declaring Records To create records, you have to define a RECORD type, and then declare records of that type. You may also define RECORD types in the declarative
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