SQL Server, how to merge two columns into one column?

Question

I have a SQL query

SELECT TABLE_SCHEMA + TABLE_NAME AS ColumnZ 
FROM information_schema.tables

I want the result should be table_Schema.table_name .

help me please!!

Answer 1

Try this:

SELECT TABLE_SCHEMA + '.' + TABLE_NAME AS ColumnZ 
FROM information_schema.tables

Answer 2

SELECT CONCAT(TABLE_SCHEMA, '.', TABLE_NAME) AS ColumnZ FROM information_schema.tables

Answer 3

This code work for you try this....

SELECT Title,
FirstName,
lastName, 
ISNULL(Title,'') + ' ' + ISNULL(FirstName,'') + ' ' + ISNULL(LastName,'') as FullName 
FROM Customer

Answer 4

From SQL Server 2017 onwards, there is CONCAT_WS operator, to concatenate with separators.

SELECT CONCAT_WS('.', TABLE_SCHEMA ,TABLE_NAME) AS ColumnZ 
FROM information_schema.tables