Contents
Can two tables have same name?
You can have tables of the same name only if they are in separate databases, and you use the database name as a qualifier.
Can two tables have same name in SQL?
A TEMPORARY table is visible only to the current session, and is dropped automatically when the session is closed. This means that two different sessions can use the same temporary table name without conflicting with each other or with an existing non-TEMPORARY table of the same name.
Can 2 tables have same column name?
The basic answer is No. Two tables can have exactly the same column names but if they are not connected in some other way then they have nothing to do with each other. Here is what normally happens when a table has a “foreign” key from another table.
Can table and view have same name?
4 Answers. Within a database, base tables and views share the same namespace, so a base table and a view cannot have the same name. As stated, you can’t do it with views, but you can with temporary tables. However, temporary tables are gone (even if you do not drop them) once your session is disconnected.
What is a column called?
A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. A long sequence of columns joined by an entablature is known as a colonnade.
What is a row in a database called?
In the context of a relational database, a row—also called a tuple—represents a single, implicitly structured data item in a table. In simple terms, a database table can be thought of as consisting of rows and columns.
Can you use the same primary key for two tables?
Yes. You can have same column name as primary key in multiple tables. Column names should be unique within a table. A table can have only one primary key, as it defines the Entity integrity.
Can we use same name for a table and view in hive?
No, we cannot use same name for a table and view in Hive. So we have to select a unique name for a view in Hive.
Can foreign key have same name?
Yes it is ok. Read sqlite foreign key document. It gives similar example. As you can see, column names are not same, but foreign key added nonetheless.
Can you have two tables with the same name?
This means that two different sessions can use the same temporary table name without conflicting with each other or with an existing non-TEMPORARY table of the same name. (The existing table is hidden until the temporary table is dropped.)
What happens if I create a temporary table with the same name?
That means after you create a temporary table with the same name as some existing table, you can not access the normal table by that name, but only the temporary one (during that session).
How to call MySQL view and table the same name?
You can call it by including the schema or if you call it from a user that is assigned the schema. This is for MS SQL server.
Can you create a temp table with the same name in MySQL?
MySQL allows you to create a temp table with a existing name because they don’t have the same “scope”. A temporary table is visible in the session only, and it is dropped at session ending. If you have the same name, MySQL “hide” the original table until you drop your temp table. Max.