UNION selects only distinct values whereas UNION ALL selects all values and not just distinct ones
Oracle SQL developer is an
Oracle SQL developer is an Oracle Database IDE.
AND, OR and NOT are examples of
Which of the following is a comparison operator in SQL?
The comparison operator that is used in SQL is '='. Comparison operators test whether two expressions are the same. Comparison operators can be used on all expressions except expressions of the text, ntext, or image data types.
A database is used to
A database is used to store, modify, extract and to search for the data within it.
A DBMS query language is designed to
A UNION query is which of the following?
A UNION query combines the output from multiple queries and must include the same number of columns.
Which of the following statements is true concerning subqueries?
Which one of the following sorts rows in SQL?
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