(AzureCXP) fixes MicrosoftDocs/azure-docs#105693

We have done changes in the line no:44,46 and 47

from:
CREATE  TABLE product_metrics (
    metric_type CHAR(1),
    created_by VARCHAR,
    created_date DATE,
    metric_id INTEGER
    CONSTRAINT pk PRIMARY KEY (metric_type, created_by, created_date, metric_id));

to:
CREATE  TABLE product_metrics (
    metric_type CHAR(1)  NOT NULL,
    created_by VARCHAR,
    created_date DATE  NOT NULL,
    metric_id INTEGER  NOT NULL
    CONSTRAINT pk PRIMARY KEY (metric_type, created_by, created_date, metric_id));
```

Author: RamanathanChinnappan-MSFT

articles/hdinsight/hdinsight-phoenix-in-hdinsight.md

@@ -41,10 +41,10 @@ For example, here is a physical table named `product_metrics` with the following
 
 ```sql
 CREATE  TABLE product_metrics (
-    metric_type CHAR(1),
+    metric_type CHAR(1)  NOT NULL,
     created_by VARCHAR,
-    created_date DATE,
-    metric_id INTEGER
+    created_date DATE  NOT NULL,
+    metric_id INTEGER  NOT NULL
     CONSTRAINT pk PRIMARY KEY (metric_type, created_by, created_date, metric_id));
 ```