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What is difference between CHAR and VARCHAR2 ? What is the maximum SIZE allowed for each type ?
CHAR pads blank spaces to the maximum length. VARCHAR2 does not pad blank spaces. For CHAR it is 255 and 2000 for VARCHAR2.
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What is the difference between a break statement and a continue statement
A break statement results in the termination of the statement to which it applies (switch,for, do, or while). A continue statement is used to end the current loop iteration andreturn control to the loop statement.