Sqlsever Base Count Query the number of non-nullable rows in a column

Town Field Poem:
——— Dream who feel, the water month Build blog. Baiqian tribulation, only know the vicissitudes of the world.
——— today holds the Buddhist language, the technology is boundless willing to learn. Willing to do what you learn, cast a conscience blog.
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1--Create a database2 CREATE DATABASE HelloWorld13 4 Use Master5 drop Database HelloWorld16 7--use helloworld1 this database8 Use helloworld19 Ten--Create a table teacher One CREATE TABLE Teacher A ( -IdintPrimary Key Identity (1,1),    -Name nvarchar (Ten), theClass nchar (2) - ) -  - CREATE TABLE location + ( -Class nchar (2), +Location nvarchar (5) A ) at  ---look at teacher, what's this form? - Select* fromTeacher - Select* from Location -  ---insert these lines of content into this teacher, which I insert once, simply modify, and insert again in INSERT INTO Teacher -Values'Buddhist Bodhisattva','Buddhist'), to('The Buddha','Buddhist'), +('Kwan-Yin','Buddhist'), -('Moral Tianzun','Taoism'), the('Lingbao Tianzun','Taoism'), *('Taibai Venus','Taoism'), $('The fairy of the wide cold',NULL)Panax Notoginseng  ---insert these lines into this location the Insert into location +Values'Buddhist','India'), A('Taoism','China'), the('Christ','Western'), +('Confucian','China') -  $--Taoist that column, not null how many lines $ SelectCount (Class) asTaoist fromTeacher

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The essence of the blog, in the technical part, more in the town yard a poem.
Sqlsever is a good language, worth studying hard. Familiar with the database of additions and deletions, write procedures necessary.
If the content of the post can be improved, or even the wrong place, please leave a comment, I will try to correct, strive to cast a conscience blog.
Note: This article is only as a scientific research study, if I inadvertently violated your rights and interests, please be sure to timely inform, I will make corrections.

Sqlsever Base Count Query the number of non-nullable rows in a column