For each of the following three queries, create one relational algebra query file using WinRDBI: List the firstname and lastname of each employee who has at least one work assignment with the project "ProductY". -- [filename: q1.alg]
List the lastnames for each pair of employees who have the same supervisor. There should not be any duplicate reversed pair and no employee be paired with the same employee. -- [filename: q2.alg]
List the firstname and lastname of employee(s) with the lowest salary value. -- [filename: q3.alg]

What percentage of companies is projected to use social media to locate new employees in 2012

1. which of the following statements are true about routers and routing on the internet. choose two answers. a. protocols ensure that a single path between two computers is established before sending packets over it. b. routers are hierarchical and the "root" router is responsible for communicating to sub-routers the best paths for them to route internet traffic. c. a packet traveling between two computers on the internet may be rerouted many times along the way or even lost or "dropped". d. routers act independently and route packets as they see fit.

True or false technology is often discovered by accident