Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Say I have an MSSQL table with two columns: an int ID column that’s the identity column and some other datetime or whatever column. Say the table has 10 records with IDs 1-10. Now I delete the record with ID = 5.
Are there any scenarios where another record will ‘fill-in’ that missing ID? I.e. when would a record be inserted and given an ID of 5?
No, unless you specifically enable identity inserts (typically done when copying tables with identity columns) and insert a row manually with the id of 5. SQLServer keeps track of the last identity inserted into each table with identity columns and increments the last inserted value to obtain the next value on insert.