Padget Electronics Data Entry Operator Interview Questions and Answers

SQL rank order function explanation

• Rank order function in SQL assigns a rank to each row based on a specified column

• It can be used to determine the top or bottom N records in a dataset

• Example: SELECT column1, column2, RANK() OVER (ORDER BY column3 DESC) AS rank_order FROM table_name

Merging two tables involves combining data from both tables based on a common key.

• Identify a common key between the two tables

• Use SQL JOIN statements to merge the tables

• Choose the appropriate type of join (e.g. inner join, outer join)

• Consider the size of the tables and the performance implications of the merge

Answering questions related to sales cycle, current role, target achievement, negotiation, and travel.

• Ideal sales cycle involves identifying potential customers, building relationships, understanding their needs, presenting solutions, and closing the deal.

• In my current role, I am responsible for managing a team of sales representatives, developing sales strategies, and achieving sales targets.

• I have consistently achiev...read more

Join in SQL is used to combine rows from two or more tables based on a related column between them.

• Join is used to retrieve data from multiple tables based on a related column

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column

Primary key is a unique identifier for each record in a database table.

• Primary key ensures each record in a table is uniquely identified

• It must contain unique values and cannot have NULL values

• Primary key can be a single column or a combination of columns

• Example: 'ID' column in a 'Users' table can be a primary key