What are the differences between MySQL_fetch_array(), MySQL_fetch_object(), MySQL_fetch_row()

What is the difference between a unique key and primary key?

How can you insert several records in TABLE1 that already exist in TABLE2?

What code would find the position of the character 'D' in the string 'ABCDE' - starting at position 1?

A recursive CTE would contain which of the following?

Which is the highest isolation level?

What will be the output of the following query?

SELECT SUBSTRING('987654321', INSTR('foobar', 'o'), 5) from DUAL; 

Which of the following is not true about the COMMIT command?

What is the difference between decimal and numeric data types?

Which of the following is true for creating SQL Views? (check any that apply)

How would you create a table with one column having Integer precision of 10?