As a result all employees are anable to access the sysfem. As a DBA explain at least two ways how you would enable employees to access the systes again and why Write yates for the following L. A develeper is tasked with disabling an employee account, bowever, the developer executed the following Design a datahase application to track users and PCs usage. A user must be at least eighteen and can log on to ne PC at a time Create a physical model Assume that the table user of question 2 abovementioned includes the column gender

A Descnhe sihuations when using the index on the cofomn will be beneficial.

B. Whar ope of index would you recommend? Explain when the index wil be beeficial if 95% of employee-thl of question l are men, and 5% are women

C. 4 You are taskied with a data migration project, kindly explain step-by-step your data migration strategy. S There are 81 marbles in a jar with th e same size and weight. One of the marbles is defective va weight kiadly provide the minimum number of steps require to identify the defective marble. Assuming it will take more than one-step 6 Create a stored procedure needs dntst by employee ojet 0,20, or 30. Use

What is the industry standand for interacting with rational database? a listing of employee names (last and first) that have worked on a 20, or 30. Uise subquery approach and sort the rows of the result project, but have not worked on dataset by employee last name Which is faster inserting one million rows of data, or updating one million rows of data and why? . Explain the different types of constraints. 10. There are several methods techniques available for us to implement business rules in a database. Kindly explais the advantages and disadvantages of each. I1. You are tasked with importing external data source into SQL Server, kindly explain step-by-step how to accomplish this task