Doubling a child's height at age 2 can provide an estimate of how tall that child will be in adulthood. (Boys are usually a little taller than that number and girls a little shorter.) That's because by 2 most children have reached the growth chart percentile they will stay on as they grow.nswer: A child's height at age 2 may be predictive of final adult height. But many factors can affect height. As they grow, children should be monitored regularly by a doctor to ensure they are growing properly and to detect any growth problems as soon as possible.
1.9 Cursors in PL/SQL. 1  Every SQL statement executed by the RDBMS has a private SQL area that contains information about the SQL statement and the set of data returned. In PL/SQL, a cursor is a name assigned to a specific private SQL area for a specific SQL statement.
As the name suggests, varchar is a varying character or varying char. Syntax of varchar is VARCHAR [(n|max)]. Varchar stores ASCII data that is non-Unicode data, and it is the data type which are used in normal usage. Varchar uses one byte per character. It also stores the length of each string in the database.