What index will be created by default when new table is created

Hi Team,
1. When creating new table, what type of index wil be created in sql server ?
2. what is the table name if we create new table without primary key?
Please help me on this
Anand Rajagopal

Hi Anand,
Your Question is quite wide in range and I am agree the other answers too. I would like to talk about your second question first because it will depend upon the first one.
When we creating a fresh table without specified any primary key it is called "Heap" table. A Heap table is not containing clustered index but it can non-clustered index (but not automatically we have
to create explicitly). It means the data is not in order and we have to apply ORDER BY clause to short the data. Heap structure is not good for big tables which requires filtration frequently.
When we create a table without specifying primary key, then none of indexes created on table. but if we specify primary key then it will create a clustered index with it. It means it is now physically
shorted. But It doesn't guarantees that if you fire SELECT statement then It will fetch record in same order (It seems but it is not) because the RDBMS is based on "SET THEORY" and it doesn't guarantee the shorting order or records.
Also have a look on "Create Table", "Indexes" & "Table Scan", "Table Seek" for better understanding.
Shivendra

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user11288935 wrote:
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