Introduction to SQL SQL is: a data sublanguage. an operating system. a programming language. a DBMS. a data sublanguage. an operating system. a programming language. a DBMS. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables? Both of above Data Manipulation Language(DML) Data Definition Language(DDL) None Both of above Data Manipulation Language(DML) Data Definition Language(DDL) None ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A subquery in an SQL SELECT statement: can always be duplicated by a join. cannot have its results sorted using ORDER BY. has a distinct form that cannot be duplicated by a join. can only be used with two tables. can always be duplicated by a join. cannot have its results sorted using ORDER BY. has a distinct form that cannot be duplicated by a join. can only be used with two tables. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SELECT statement SELECT 'Hi' FROM DUAL WHERE NULL = NULL; Outputs Hi Nothing FLASE TRUE Hi Nothing FLASE TRUE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL ON UPDATE CASCADE ensures which of the following? Normalization Materialized Views Data Integrity All of these Normalization Materialized Views Data Integrity All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following query finds the names of the sailors who have reserved at least one boat? SELECT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; SELECT DISTINCT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; None of These SELECT DISTINCT s.sname FROM sailors, reserves WHERE s.sid = r.sid; SELECT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; SELECT DISTINCT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; None of These SELECT DISTINCT s.sname FROM sailors, reserves WHERE s.sid = r.sid; ANSWER DOWNLOAD EXAMIANS APP
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