1. Getting Familiar with DS2 and FedSQL
OASUS Spring or Fall YYYY
Monday, April 17, 2017
Getting Familiar with DS2 and FedSQL
Greg Ludwinski
Statistics Canada
First & last name Company name

2. OASUS Spring or Fall YYYY
Monday, April 17, 2017
FedSQL
SAS Implementation of ANSI SQL:1999 core standard (vender neutral)
Fed stands for Federated
Accessible in SAS base via Proc FedSQL starting in SAS 9.4
Optimized with multi-threaded algorithms
First & last name Company name

3. OASUS Spring or Fall YYYY
Monday, April 17, 2017
DS2
A programming language accessible via Proc DS2 in base SAS
Accepts embedded FedSQL syntax
Many similarities to the data step
Leverages a new SAS kernel
In-Database Code Accelerator
First & last name Company name

4. OASUS Spring or Fall YYYY
Monday, April 17, 2017
Data Types
Category
Types
Character
CHAR(n) , VARCHAR(n)
NCHAR(n), NVARCHAR(n)
Fractional numeric
FLOAT(p), REAL, DOUBLE
DECIMAL(p,s)
Integer numeric
TINYINT (127)
SMALLINT (32,767)
INTEGER (2,147,483,647)
BIGINT ( 9,223,372,036,854,775,807)
Binary
BINARY(n)
VARBINARY(n)
Date and time
ANSI date, time, and timestamp,
Conversion functions;
TO_DOUBLE, TO_DATE, TO_TIME, TO_TIMESTAMP
First & last name Company name

5. OASUS Spring or Fall YYYY
Monday, April 17, 2017
Programming Blocks
DATA...ENDDATA
METHOD...END
PACKAGE...ENDPACKAGE
THREAD...ENDTHREAD
DO...END
First & last name Company name

6. OASUS Spring or Fall YYYY
Monday, April 17, 2017
Program Structure
Data <output dataset | _NULL_>; {global variable declarations} method init(); {local variable declarations, DS2 Statements} end; method run(); method term(); enddata;
First & last name Company name

7. OASUS Spring or Fall YYYY
Monday, April 17, 2017
Methods
All code executes in a method
System methods
Init(), Run(), Term(), SetParms()
User-defined methods
Methods can be overloaded
First & last name Company name

8. OASUS Spring or Fall YYYY
Monday, April 17, 2017
Packages
DS2 packages are similar to classes
Predefined
FCMP
Logger
SQLSTMT
Matrix
Hash
HTTP
User defined
First & last name Company name

9. OASUS Spring or Fall YYYY
Monday, April 17, 2017
Threads
Light weight processes
Share resources
Process sections of a dataset concurrently
Executed with the SET FROM statement
First & last name Company name

10. OASUS Spring or Fall YYYY
Monday, April 17, 2017
Scope
Declare variables (DS2SCOND=ERROR)
Global scope vs. Method scope
Data program vs. Package vs. Thread scope.
Dot notation resolves conflicts (This)
First & last name Company name

11. OASUS Spring or Fall YYYY
Monday, April 17, 2017
DS2 Benefits
Precision
Modularity, Encapsulation, and Abstraction
Multi-threading 
Performance
First & last name Company name

12. OASUS Spring or Fall YYYY
Monday, April 17, 2017
Resources
DS2 Language Reference (1000+ pages)
FedSQL Language Reference (500+ pages)
SGF 2014 Papers
DS2 and You (SGF 2013)
SAS Support
*DS2 Programming Essentials course is coming to Ottawa in 2015
First & last name Company name

13. OASUS Spring or Fall YYYY
Monday, April 17, 2017
Example Time
First & last name Company name

14. OASUS Spring or Fall YYYY
Questions / Comments
Monday, April 17, 2017
Greg Ludwinski
Project Leader
System Engineering Division
Statistics Canada
Jean Talon Building 5th Floor Section A2
170, Tunney’s Pasture driveway
Ottawa, Ont., K1A 0T6
(613)
First & last name Company name