Introduction to SQL The command to remove rows from a table 'CUSTOMER' is: DELETE FROM CUSTOMER WHERE ... UPDATE FROM CUSTOMER ... REMOVE FROM CUSTOMER ... DROP FROM CUSTOMER ... DELETE FROM CUSTOMER WHERE ... UPDATE FROM CUSTOMER ... REMOVE FROM CUSTOMER ... DROP FROM CUSTOMER ... ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The result of every SQL query is a table. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL DISTINCT and its counterpart, ALL, can be used more than once in a SELECT statement. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL 'AS' clause is used in SQL for Join operation. Projection operation. Selection operation. Rename operation. Join operation. Projection operation. Selection operation. Rename operation. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SELECT statement SELECT 'Hi' FROM DUAL WHERE NULL = NULL; Outputs Hi TRUE Nothing FLASE Hi TRUE Nothing FLASE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What does the following query find?(SELECT DISTINCT r.sidFROM boats b, reserves rWHERE b.bid = r.bidAND b.color = 'red')MINUS(SELECT DISTINCT r.sidFROM boats b, reserves rWHERE b.bid = r.bidAND b.color = 'green') Find the sailor IDs of all sailors who have reserved red boats but not green boats Find the sailor IDs of at least one sailor who have reserved red boats but not green boats None of These Find the sailor Ids of atmost one sailor who have reserved red boats but not green boats Find the sailor IDs of all sailors who have reserved red boats but not green boats Find the sailor IDs of at least one sailor who have reserved red boats but not green boats None of These Find the sailor Ids of atmost one sailor who have reserved red boats but not green boats ANSWER DOWNLOAD EXAMIANS APP
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