For inserting into a column in a table what are the character data types?
For byte data, there are three Oracle SQL types: VARCHAR2, LONG and CLOB. VARCHAR2 data is of limited length, is stored directly in a column, and is transmitted to the server in inline packets. LONG data has a much larger limit (2 Gigibytes), is stored via a special mechanism alongside the row and is transmitted to the server via a streaming callback mechanism. CLOB data is effectively unlimited in length, is stored in separately from the table with only a lob locator stored in the table, and is transmitted to the server is separate operations before the locator is stored into a column in the table.