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Get unique department from employee table

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Reference no: EM131144170

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clues 1: Get unique DEPARTMENT from employee table 

clues 2: Select first 3 characters of FIRST_NAME from EMPLOYEE

clues 3:- Get position of 'o' in name 'John' from employee table

clues 4: Get FIRST_NAME from employee table after removing white spaces from right side

clues 5: Get First Name and Last Name as single column from employee table separated by a '_'

Reference no: EM131144170

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Get unique department from employee table : clues 1: Get unique DEPARTMENT from employee table  clues 2: Select first 3 characters of FIRST_NAME from EMPLOYEE
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