Introduction to SQL 'AS' clause is used in SQL for Projection operation. Rename operation. Join operation. Selection operation. Projection operation. Rename operation. Join operation. Selection operation. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL If you are going to use a combination of three or more AND and OR conditions, it is often easier to use the NOT and NOT IN operators. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which command undo all the updates performed by the SQL in the transaction? TRUNCATE ROLLBACK COMMIT DELETE TRUNCATE ROLLBACK COMMIT DELETE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A subquery in an SQL SELECT statement: can only be used with two tables. cannot have its results sorted using ORDER BY. can always be duplicated by a join. has a distinct form that cannot be duplicated by a join. can only be used with two tables. cannot have its results sorted using ORDER BY. can always be duplicated by a join. has a distinct form that cannot be duplicated by a join. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statement: SELECT Name, COUNT(*) FROM NAME_TABLE; counts the number of name rows and displays this total in a table with a single row and a single column. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL SQL can be used to: query database data only. All of these modify database data only. create database structures only. query database data only. All of these modify database data only. create database structures only. ANSWER DOWNLOAD EXAMIANS APP
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