Char data types are predefined in length and will always take that much bits in the database regardless of the length of the word/record store in it. Varchar2 on the other hand means variable length. The max lenght is defined, but actual bit sizes taken in the database depends on the word/record stored in the data field up to the length defined. ~ Wale
What is the difference between the three types of ballistics
explain the difference between the two types of skeletal muscle tissue?
You can tell the difference between two types of trees, because they leaf clues.
different types of proficiency
Matter is made from atoms; so this question changes itself to "What is the difference between types of atoms". That difference lies primarily in the number of protons that exist in the atom's nucleus.
In Oracle, the char(20) datatype is a fixed length character string. It will always use 20 characters in the block. If the value contained in the field is less than 20 characters, it will be padded on the right (or the left, depending on coding) with spaces. In Oracle, the varchar(20) datatype is a variable length character string. It will use betwen 1 and 21 characters in the block, 1 for the length, and 0-20 for the data. Its effective length can range between 0 and 20 characters. Note, however, that a string of length 0 is indistinguishable from a null value. This is a deviation from the SQL standard that Oracle acknowledges, but fixing it would break too much existing code. Note also that comparing a char against a varchar is problematic. With the trailiing spaces, the char is not the same as a varchar containing the same characters. Predicates involving these mixed types should use the rtrim expression on the char datatype. (Example: while rtrim(mycharvalue) = myvarcharvalue) Note also that varchar is obsolete. Current code should use varchar2, such as varchar2(20).
they are opposite in their spelling
alot of work
Your mom hahahahahahaha
There's no signifigant difference between the two, each is used in certain contexts. "There are dozens of different dog types", versus, "there are various dog types."
Identify 5 types of search engines and explain the difference between
what is the tragedy and what is types of tragedy what is the tragedy and what is types of tragedy
There is no difference; both refer to reproductive structures of certain types of fungi.