PROGRAMMING FOR ANALYTICS
1. Database is a collection of interrelated data
2. Data is a real world entity or object
3. Information is an organised and meaningful data
4. The application of DBMS, MySQL, MS SQL server, oracle SQL
5. Data security provides access privilege and read only privilege
6. Mention any two characteristics of DBMS - data atomicity, redundancy
7. Mention 2 advantages
8. Disadvantages of DBMS
9. 3 types of DBMS users
10. Architecture of DBMS includes application programmer, database administrator, end user
11. What are the schemas of DBMS - internal, conceptual, external
12. Attributes are properties of entities in the entity set
13. Relationship is an association between several entities
14. Relationship set is a set of relationships of the same type
15. Degree is the total number of attributes in a relational table
16. Cardinality is the total number of rows present in a table
17. Which entity cannot be uniquely defined by its own attributes and relies on the relationship with
another entity - weak entity
18. What are the 4 main types of relational integrity constraints
19. What are the two types of database - relational and non relational
20. Expand DCL, DQL, DDL, DML - control language, query language, definition language, manipulation
language
21. SAS help library is a permanent library
22. SAS has found vast usage in pharmaceutical industry
23. Pharmaceutical industry use SAS for analysing patients record creating safe drugs and clinical
research
24. SAS enables better data analysis using SaS SQL and automatic code generation
25. SAS stands for statistical analysis system
26. SAS software is addressed by which browser? Local host 10080
27. SAS studio displays how many rows at a time? 100
28. The data set which you create are stored under which library? Work library
29. Work library is a temporary library.
30. For creating the multiple observation which statement do we include? INPUT and DATA LINES
31. SAS datasets are structured data files that SAS creates and can be read only by SAS.
32. In SAS Observation is a row.
33. In SAS Variable is a column.
34. Which SAS variable names are invalid(should have _ or upper and lower case). :
5monthsdata, fivemonthdata
Ans: five_month, FiveMonthData
35. Which library is a default library? Work library
36. If you end your SAS session, need to access a data set again which of the following step you must do
Ans:LIBNAM statement do define a libref
37. In the LIBNAM statement, which has the correct syntax
Ans: 'r:\work';
38. Which of the following statement is not true of SAS date values
base date is Jan 1,2020
39. Which statement about SAS library is true.
A sas library is a collection of 1 or more SAS files that are referred and stored as a unit
40. Data truncation often happens when you create a character Variable that is longer than 8 characters.
41. To avoid data truncation which statement do we use:
Length
42. To filter the data set and keep only the original data which statement do we use.
IF
43. To access data set from other libraries which statement is used.
LIBNAME
44. SAS is insensitive to case and indentation
45. Which statement is used to copy the dataset. SET