Database programming section 12 quiz

  • What keyword in an update statement specifies the column that you want to change select having WHERE set?

    Use the SET clause to specify a new value for each column that you want to update.
    The SET clause names the columns that you want updated and provides the values that you want them changed to..

  • What would happen if you issued a DELETE statement without a WHERE clause?

    The result of the DELETE statement is the removal of zero or more rows of a table, depending on how many rows satisfy the search condition specified in the WHERE clause.
    If you omit the WHERE clause from a DELETE statement, SQL removes all the rows from the table..

  • Which two commands can be used to modify existing data in a database row?

    Answer.
    The two commands that can be used to modify existing data in a database row are UPDATE and MERGE..

  • DELETE deletes rows that satisfy the WHERE clause from the specified table.
    If the WHERE clause is absent, the effect is to delete all rows in the table.

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