capitalized keywords

Author: icoric

docs/t-sql/language-elements/variables-transact-sql.md

@@ -37,12 +37,12 @@ The following script creates a small test table and populates it with 26 rows. T
 
 ```sql
 -- Create the table.
-CREATE TABLE TestTable (cola int, colb char(3));
+CREATE TABLE TestTable (cola INT, colb CHAR(3));
 GO
 SET NOCOUNT ON;
 GO
 -- Declare the variable to be used.
-DECLARE @MyCounter int;
+DECLARE @MyCounter INT;
 
 -- Initialize the variable.
 SET @MyCounter = 0;
@@ -84,20 +84,20 @@ The DECLARE statement initializes a Transact-SQL variable by:
 
 For example, the following **DECLARE** statement creates a local variable named **\@mycounter** with an int data type.  
 ```sql
-DECLARE @MyCounter int;
+DECLARE @MyCounter INT;
 ```
 To declare more than one local variable, use a comma after the first local variable defined, and then specify the next local variable name and data type.
 
 For example, the following **DECLARE** statement creates three local variables named **\@LastName**, **\@FirstName** and **\@StateProvince**, and initializes each to NULL:  
 ```sql
-DECLARE @LastName nvarchar(30), @FirstName nvarchar(20), @StateProvince nchar(2);
+DECLARE @LastName NVARCHAR(30), @FirstName NVARCHAR(20), @StateProvince NCHAR(2);
 ```
 
 The scope of a variable is the range of Transact-SQL statements that can reference the variable. The scope of a variable lasts from the point it is declared until the end of the batch or stored procedure in which it is declared. For example, the following script generates a syntax error because the variable is declared in one batch and referenced in another:  
 ```sql
 USE AdventureWorks2014;
 GO
-DECLARE @MyVariable int;
+DECLARE @MyVariable INT;
 SET @MyVariable = 1;
 -- Terminate the batch by using the GO keyword.
 GO 
@@ -113,7 +113,7 @@ WHERE BusinessEntityID = @MyVariable;
 Variables have local scope and are only visible within the batch or procedure where they are defined. In the following example, the nested scope created for execution of sp_executesql does not have access to the variable declared in the higher scope and returns and error.  
 
 ```sql
-DECLARE @MyVariable int;
+DECLARE @MyVariable INT;
 SET @MyVariable = 1;
 EXECUTE sp_executesql N'SELECT @MyVariable'; -- this produces an error
 ```
@@ -128,8 +128,8 @@ To assign a variable a value by using the SET statement, include the variable na
 USE AdventureWorks2014;
 GO
 -- Declare two variables.
-DECLARE @FirstNameVariable nvarchar(50),
-   @PostalCodeVariable nvarchar(15);
+DECLARE @FirstNameVariable NVARCHAR(50),
+   @PostalCodeVariable NVARCHAR(15);
 
 -- Set their values.
 SET @FirstNameVariable = N'Amy';
@@ -148,7 +148,7 @@ A variable can also have a value assigned by being referenced in a select list.
 ```sql
 USE AdventureWorks2014;
 GO
-DECLARE @EmpIDVariable int;
+DECLARE @EmpIDVariable INT;
 
 SELECT @EmpIDVariable = MAX(EmployeeID)
 FROM HumanResources.Employee;
@@ -163,7 +163,7 @@ If a SELECT statement returns more than one row and the variable references a no
 ```sql
 USE AdventureWorks2014;
 GO
-DECLARE @EmpIDVariable int;
+DECLARE @EmpIDVariable INT;
 
 SELECT @EmpIDVariable = BusinessEntityID
 FROM HumanResources.Employee