Just Need the SQL Statements:

Login as system. Switch to orlcpdb container

Study the structure of SH.CUSTOMERS table. This table is part of the same sample schema as OE.CUSTOMERS

What query did you use? Provide code of the query.

Find all indexes on SH.CUSTOMERS table. You might need to use several data dictionary views to find all information required.

Provide code of all queries

Index name	Column Name		Index Type

Find how many rows in SH.CUSTOMERS table have information about customers whose last name contains "ltz".

What query did you use? Provide code of the query

Find an execution plan for the previous query. Pin the execution plan.

Provide an explanation of the observed results.

Add index to SH.CUSTOMERS table. The index should combine customers' first name and last name.

What query did you use? Provide code of the query

Find how many rows in SH.CUSTOMERS table have information about customers whose last name contains "ltz".

What query did you use? Provide code of the query

Find an execution plan for the previous query.

Provide an explanation of the observed results.

Compare execution plans for both queries (before and after the index).

Provide an explanation of observed results.