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Can we join two table which have same data types but different column name?
The longer answer is yes, there are a few ways to combine two tables without a common column, including CROSS JOIN (Cartesian product) and UNION. The latter is technically not a join but can be handy for merging tables in SQL.
Can two tables have two columns under the same name justify?
But you can name them slightly different, like col1 and col_1 , like in your example. Then everything will work fine. You never told us which database you were using, but most likely your RDBMS will not allow creating a table with two or more columns having the same name.
Can column name be same as table name?
Columns in the same table or view cannot have the same name. However, columns in different tables or views can have the same name.
Can a table contain the same column names?
(for tedious reasons I cannot/am not permitted to combine them, which would make this irrelevant!) Assuming that in addition to having the same column names, columns of the same contain the same data, you want to create a view that is the union of all those tables.
How to work with multiple tables with same name?
I’m studying MS SQL, and mySQL and trying to practice using Joins (INNER and OUTER) etc…. I have some sample data and some column names are the same, so when referring to the column name in the query I need to reference to the full name path to the column.
How to get values for same column name in SQL?
How to get values for same column name from two different tables in SQL? column name is emp_id loacated in these two tables: company,employee. You can do what you are asking, something like the example below, but if you provide a sample query, it would help…
When do table names have to be unique?
Table names have to be unique, but only within the context of the schema that contains the tables, etc. When you query columns you need to reference the schema, table and column that you are interested in, unless one or more of these can be inferred.