How to compare two tables column by column in Oracle?

How to compare two tables column by column in Oracle?

The same table with same columns (say 50 columns are is avlbl in two databases and two databases are linked. I want to compare these two tables column by column and find out which records are not matching. i want the specific column in each row in two tables that are not matching.

How to add a column for sum of c _ 3?

Simply use [Over (Order By C_1)] to add a column for sum of C_3: If you are using SQL Server 2012 or greater then this will produce the required result. This will work based on grouping of columns cumulative summation for a column.

How to sum the previous month in SQL?

The previous month is more or less the same using another case statement and ADD_MONTHS. First Way . Under Analysis –> Total –> Add All SubTotals . Compute the Window_sum as COMPUTE USING EVENT NAME . If you CAN USE sql AND YOU actually need the previous month and not just all months summed by EventName then you could use LAG.

How to return multiple columns in Oracle Database?

Fortunately, Oracle Database makes it easy for us to accomplish this. Simply: Define an object type whose attributes match the name, number and type of values you want to reference in the SELECT. Define a schema-level nested table or varray type of those object types.

What are the advantages of using multiple columns in Oracle?

The advantage of this is that it separates your data out of the query somewhat. (This is DB2 syntax; it may need a bit of tweaking on your system). Oracle ignores rows where one or more of the selected columns is NULL.

How do you create multiple columns in a table?

Suppose you want your table function to return multiple columns, just like most relational tables. Then what do you do? Well, you create an object type, an array of those object types, and construct data as needed to populate that array. Sound complicated?