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. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL SELECT DISTINCT is used if a user wishes to see duplicate columns in a query. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables? Data Manipulation Language(DML) Both of above None Data Definition Language(DDL) Data Manipulation Language(DML) Both of above None Data Definition Language(DDL) ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What operator tests column for the absence of data? EXISTS operator NOT operator None of these IS NULL operator EXISTS operator NOT operator None of these IS NULL operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following command makes the updates performed by the transaction permanent in the database? TRUNCATE ROLLBACK DELETE COMMIT TRUNCATE ROLLBACK DELETE COMMIT ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS