Attempt the following;
1. Run the lab_03_01.sql script in the attached file to create the SAL_HISTORY table.
 2. Display the structure of the SAL_HISTORY table.
 3. Run the lab_03_03.sql.sql script in  the attached file  to create the MGR_HISTORY table.
 4. Display the structure of the MGR_HISTORY table.
 5. Run the lab_03_05.sql.sql script in the attached file to create the SPECIAL_SALtable.
 6. Display the structure of the SPECIAL_SAL table.
 7.a Run the lab_03_08a.sql script in the lattached file to create the SALES_SOURCE_DATA table.
 7b. Run the lab_03_08b.sql script in the lattached file  to insert records into the SALES_SOURCE_DATA table
 7.c Display the records from the SALES_SOURCE_DATA table.
 Take a screenshot of the result of the queries and submit it.
Download:- Sql_files.zip