define- relational algebrathe relational algebra
Define- relational algebra.
The relational algebra is a procedural query language. It having of a set of operations that take one or two relation as input and make a new relation as output.
Expected delivery within 24 Hours
what is a candidate keyminimal super keys are known as candidate
what is a primary keyprimary key is chosen by the database designer as the principal means of identifying an entity in the entity
explain feed - cutting parameters1 in cylindrical grinding feed is the longitude movement of the work piece per revolutionffeed in mm per work piece
what is a super keya super key is a set of one or more attributes that collectively permits us to recognize uniquely an entity in the entity
define- relational algebrathe relational algebra is a procedural query language it having of a set of operations that take one or two relation as
what is a select operationthe select operation selects tuples that please a given predicate we use the lowercase letter sigma to denote
what is a project operationthe project operation is a unary operation that returns its argument relation with particular attributes left out
q is there respiratory pigment in the annelid bloodthe blood in beings of the phylum annelida contains the respiratory pigment hemoglobin the same
write short notes on tuple relational calculusthe tuple relational calculation is anon procedural query language it defines the desired information
1934337
Questions Asked
3,689
Active Tutors
1424206
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
The two main learning outcomes that stuck with me the most were to discuss the concepts of a healthy workplace and a healthy workforce
Provide high quality, safe, patient-centered care grounded in holistic health principles.
symptoms (S&S), assessment, plan of care, and at least 3 possible differential diagnoses with rationales. - (Case: Patient Has Hypertension)
How do you get certified and licensed as an Advanced Practice Registered Nurse (APRN) in your state? What is your state's board of nursing website?
Analyze and evaluate a middle range theory. You will select a middle range theory and identify application of nursing theories into clinical practice
When the Affordable Care Act was passed, it came with a requirement of empirical evidence. Research on EBP increased significantly.
Which test(s) should be performed to determine whether the anemia is related to chronic disease or iron deficiency and what would those results show?