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Q13: In the USER_CONSTRAINTS view, the value displayed
Q20: The maximum width of a VARCHAR2 column
Q25: To delete all the rows in a
Q27: Which of the following SQL statements will
Q45: A DATE column consists of _ bytes.
Q52: A PRIMARY KEY constraint will make certain
Q64: The <span class="ql-formula" data-value="\underline {
Q72: The _ clause is used to specify
Q80: Which of the following will display all
Q83: When modifying data in existing columns, which