1 Chronic sinusitis lasts longer than eight weeks or occurs more than four times per year, with symptoms usually lasting more than 20 days. 2  Sinusitis can be caused by viruses, allergens, pollutants, bacteria, and fungi. 3  Symptoms of sinusitis include. 4  runny or stuffy nose,  postnasal drip,
The information in a ROWID gives Oracle everything he needs to find your row, the disk number, the cylinder, block and offset into the block. The ROWNUM is a pseudo-column, a placeholder that you can reference in SQL*Plus. The ROWNUM can be used to write specialized SQL and tune SQL. In sum, the difference between ROWNUM and ROWID is that ROWNUM is temporary while ROWID is permanent.
after you create a table you can insert query delete and update rows using sql a row is a collection of column information corresponding to a record in a table for example a row in the employees table describes the attributes of a specific employee