How to compare two table and insert other table in entity or SQL?

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How to compare different database table and If two columns are not identical, add to other table.And then if not equal status get 0.

What I have tried:

DATABASE STUDENT -TABLE STUDENT

ID   NAME   COUNTRYNO   AGE   BRANCHCODE
1    Alex    185        25       15
2    Mary    146        26       19
3    Emily   102        45       14


DATABASE PERSON - TABLE PERSON

ID   NAME   COUNTRYNO   AGE   BRANCHCODE  
1    John     127        45      65
2    Elize    125        54      39
3    Toms     127        42      94

<pre>I would like to look at two columns and two columns, and then look at the country no and the branchcode that are in the person. I want to insert into the table named NewTable if these two columns are different.

 DATABASE STUDENT - NEW STUDENT 

 
ID   NAME   COUNTRYNO   AGE   BRANCHCODE  DURUM
1    John     127        45      65        0
2    Elize    125        54      39        0
3    Toms     127        42      94        0



var common =query1.Intersect(query2);

string query= "SELECT COUNTRYNO,BRANCHCODE FROM " + DATABASE.SCHEMA + ".dbo.STUDENT";

string query2= "SELECT COUNTRYNO,BRANCHCODE FROM " + DATABASE.SCHEMA + ".dbo.PERSON";



How can I do with sql query or entity (add range).

Posted 7-Nov-18 9:13am

StudentSC

Updated 7-Nov-18 9:30am

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#realJSOP · Answer 1 · 2018-11-07T09:30:00

A MERGE statement would do it (based on your limited - and nonsensical - example data set).

SQL

MERGE table1 AS t
USING table2 AS s
ON (t.id = s.id)
WHEN MATCHED THEN
SET t.name = s.name,
    t.countryno = s.countryno,
    t.age = s.age,
    t.branchcode = s.branchcode
WHEN NOT MATCHED
INSERT (name, countryno, age, branchcode)
VALUES (s.name, s.countryno, s.age, s.branchcode);

The code above will update any row where the ID from the target table matches the one from the source table. Otherwise, if a match isn't found, the source row will be added to the target table.

If my example, you will end up with three records in the target table.

CAVEAT: I typed this off the top of my head, so it may need some minor tweaking to actually execute.