drop database snippet change to prevent command failure (#317)

* drop database change to prevent comman failure

* fixed insert snippet missing comma

* simplified create table snippet

* reverted Identity column definition and fixed insert snippet

snippets/mssql.json

@@ -43,6 +43,8 @@
 			"-- Connect to the 'master' database to run this snippet",
 			"USE master",
 			"GO",
+			"-- Uncomment the ALTER DATABASE statement below to set the database to SINGLE_USER mode if the drop database command fails because the database is in use.",
+			"-- ALTER DATABASE ${DatabaseName} SET SINGLE_USER WITH ROLLBACK IMMEDIATE;",
 			"-- Drop the database if it exists",
 			"IF EXISTS (",
 			"  SELECT name",
@@ -66,11 +68,10 @@
 			"-- Create the table in the specified schema",
 			"CREATE TABLE ${SchemaName}.${TableName}",
 			"(",
-			"	${TableName}Id INT NOT NULL, -- primary key column",
+			"	${TableName}Id INT NOT NULL PRIMARY KEY, -- primary key column",
 			"	Column1 [NVARCHAR](50) NOT NULL,",
 			"	Column2 [NVARCHAR](50) NOT NULL",
 			"   -- specify more columns here",
-			"	CONSTRAINT PK_${TableName} PRIMARY KEY (${TableName}Id)",
 			");",
 			"GO"
 		],
@@ -138,10 +139,10 @@
 			")",
 			"VALUES",
 			"( -- first row: values for the columns in the list above",
-			" Column1_Value, Column2_Value, Column2_Value",
-			")",
+			" Column1_Value, Column2_Value, Column3_Value",
+			"),",
 			"( -- second row: values for the columns in the list above",
-			" Column1_Value, Column2_Value, Column2_Value",
+			" Column1_Value, Column2_Value, Column3_Value",
 			")",
 			"-- add more rows here",
 			"GO"