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QuestionRun an external program C# from within the Oracle Developer Pin
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QuestionDisplay records based on selected date range in months within same year? Pin
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Questiontime-consuming insert operation Pin
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QuestionCREATE INDEX Pin
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QuestionSQL behind the scenes Pin
mike741116-Jan-24 17:02
mike741116-Jan-24 17:02 
Let's say you have a SQL database with a table called USERS.

Let's say it has 500,000 users in it.

Let's say you do this:

SQL
SELECT PASSWORD FROM USERS WHERE USER='bill.gates';

Let's say there's no indices on the table.

Does the database just do a linear search thru each user?

Thank you.
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