Final answer:
False. Oracle does not automatically adjust the size of the column name to the data field in the output; it is based on the defined data type and size.
Step-by-step explanation:
The statement 'Oracle has the habit of making the size of the column name as big as the data field in your output' is False.In Oracle, the size of the column name is not dependent on the size of the data field. The column name is defined separately and has a fixed length, regardless of the data it contains.
For example, you can have a column named 'Name' with a data field size of 100 characters. The column name would still be 'Name' and not expand to match the data field size.
False. Oracle does not have the habit of making the size of the column name as big as the data field in your output. In Oracle Database, the column width displayed in query results via command-line interfaces like SQL*Plus or SQLcl, or tools like Oracle SQL Developer, is determined by the data type and size specified when the table was created. If a column is defined as VARCHAR2(50), the maximum width of this column in a query result would be 50 characters, sufficient to display any value the column may hold. However, the actual data displayed will not force the column name width to expand if the data itself is shorter than the maximum size unless explicitly formatted to do so.