WISE OWL EXERCISES
- Simple Queries (4)
- Setting criteria using WHERE (5)
- Calculations (7)
- Calculations using dates (4)
- Basic joins (8)
- More exotic joins (2)
- Aggregation and grouping (8)
- Views (5)
- Subqueries (5)
- Stored procedures (5)
- Variables (8)
- Parameters and return values (11)
- Testing conditions (1)
- Looping (3)
- Scalar functions (6)
- Transactions (5)
- Creating tables (5)
- Temporary tables and table variables (9)
- Table-valued functions (6)
- Derived tables and CTEs (13)
- Dynamic SQL (4)
- Pivots (2)
- Triggers (2)
- Archived (70)
SQL | Variables exercise | Declaring variables and setting values
This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.
The answer to the exercise will be included and explained if you attend the course listed below!
You need a minimum screen resolution of about 700 pixels width to see our exercises. This is because they contain diagrams and tables which would not be viewable easily on a mobile phone or small laptop. Please use a larger tablet, notebook or desktop computer, or change your screen resolution settings.
The aim of this exercise is to use variables to present some information about yourself as a little sentence:
This could be your Tinder profile ...
Start by declaring the variables you will need:
|Your birth date||datetime|
|Your pet count||int|
The structure for a variable looks like this:
DECLARE @VariableName DataType
You can put data into variables using SET, SELECT or by setting them = to something. Using these three techniques put information about yourself into your variables:
DECLARE @Variable1 DataType = 'Your Name'
SET @Variable2 = 'Your dob'
SELECT @Variable3 = 'Your number of pets'
Try to make your variable names as relevant as you can to the information that they will contain.
Finally concatenate your variables with appropriate text to SELECT the sentence shown at the start of this exercise (you'll need to convert some of the data types to text to do this).
Optionally, save your query as Nice to meet you, then close it down.