When you work with a SQL data reader object, your position within the record set is called the cursor. A row of records at a time that are obtained using a SQL Command object are read using a SQL Data Reader. We can only see the record because it is read-only; we cannot alter it.
Additionally, you can only go forward; you cannot go back to a prior row (record). Instead of utilizing a function Object native code directly, you must use the Execute Reader function of the SQL Command object to build a SQL Data Reader. The SQL Data Reader's associated SQL Connection is occupied while in use servicing the SQL Data Reader.
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