Update multiple columns in SQL

Question

Try this:

UPDATE table1 
SET a = t2.a, b = t2.b, .......
FROM table2 t2
WHERE table1.id = t2.id

That should work in most SQL dialects, excluding Oracle.

And yes - it's a lot of typing - it's the way SQL does this.

The "tiresome way" is standard SQL and how mainstream RDBMS do it.

With a 100+ columns, you mostly likely have a design problem... also, there are mitigating methods in client tools (eg generation UPDATE statements) or by using ORMs

Syntax

UPDATE table-name 
SET column-name = value, column-name = value, ...
WHERE condition

Example

UPDATE school
SET course = 'mysqli', teacher = 'Tanzania', student = 'you'
WHERE id = 6

Your query is nearly correct. The T-SQL for this is:

UPDATE  Table1
SET     Field1 = Table2.Field1,
        Field2 = Table2.Field2,
        other columns...
FROM    Table2
WHERE   Table1.ID = Table2.ID

The Update table1 set (a,b,c) = (select x,y,x) syntax is an example of the use of row-value constructors, Oracle supports this, MSSQL does not. (Connect item)

   UPDATE t1 
    SET 
    t1.a = t2.a,
    t1.b = t2.b,
    .
    .
    .


    FROM 
    table1 t1 
    INNER JOIN table2 t2 ON  t1.id=t2.id

You can try this

I tried with this way and its working fine :

UPDATE 
  Emp
SET 
  ID = 123, 
  Name = 'Peter' 
FROM 
  Table_Name