Oracle updating recordset during cursor
The option to use a string as opposed to an integer is designed to be used when column aliases and names are used in the SQL query that generated the result set.
You are not required to make changes to the records in order to use this statement.
Furthermore, if you want an application to retrieve values of any standard SQL type other than SQL3 types, use the are the name of the coffee and its price, respectively.
The second value in each row is 49 because that is the identification number for the supplier, Superior Coffee.
To specify a column alias, use the SQL object, and the value has to be converted back to a numeric type before it can be operated on as a number.
In cases where the value is treated as a string anyway, there is no drawback.
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If all four commands execute successfully, the DBMS will return an update count for each command in the order in which it was executed. This tells you how many commands in the batch executed successfully and which ones they are.