<prompt> Kujenga SQL query kupata idadi ya jumla ya wafanyakazi ambao alijiunga na kampuni kabla ya Januari 1, 2021.  <response>: Here is a SQL query that could accomplish this task:SELECT COUNT as TotalEmployeesFROM EmployeesWHERE HireDate 2021-01-01;This query assumes that there is a table named Employees with a column HireDate that represents the date the employee joined the company. The WHERE clause filters the employees to only include those whose HireDate is before January 1, 2021, and the COUNT function calculates the total number of rows that match this criteria. Finally, the as TotalEmployees creates an alias for the resulting count, so the output column is clearly labeled as the total number of employees who joined the company before January 1, 2021. 