Heard of Space function? It returns a string of repeated spaces. Syntax: SPACE ( integer_expression ) integer_expression : Is a positive integer that indicates the number of spaces. If integer_expression is negative, a null string is returned....

Heard of Space function? It returns a string of repeated spaces. Syntax: SPACE ( integer_expression ) integer_expression : Is a positive integer that indicates the number of spaces. If integer_expression is negative, a null string is returned....

Heard of Space function? It returns a string of repeated spaces. Syntax: SPACE ( integer_expression ) integer_expression : Is a positive integer that indicates the number of spaces. If integer_expression is negative, a null string is returned....

Heard of Space function? It returns a string of repeated spaces. Syntax: SPACE ( integer_expression ) integer_expression : Is a positive integer that indicates the number of spaces. If integer_expression is negative, a null string is returned....

Heard of Space function? It returns a string of repeated spaces. Syntax: SPACE ( integer_expression ) integer_expression : Is a positive integer that indicates the number of spaces. If integer_expression is negative, a null string is returned.

My solution was very similar to another submitted solution. However, I really prefer CTEs over sub queries. Another benefit is Oracle's sub query factoring (not in use here), which will usually be more efficient (but not always!)....

This challenge is about finding second highest salary for each department...

I realize this is late. I just found the PLSQL challenges. But, my solution was different from others that I found already submitted. CTEs make the query more readable. I saw some uses of Dense_Rank to join fruits and grains but this would not work prop...

This challenge involves assigning food packets to birds from two different baskets. Your job is to read the input table and produce the required result set using a single PLSQL query....