What Are Data Types Limitations

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Q

What Are Data Types Limitations?

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A

Max. columns in a table is 255. Max. Char size is 255, Long is 64K and Number is 38 digits.
Cannot Query on a long column.
Char, Varchar2 Max. size is 2000 and default is 1 byte.
Number(p,s) p is precision range 1 to 38, s is scale -84 to 127.
Long Character data of variable length upto 2GB.
Date Range from Jan 4712 BC to Dec 4712 AD.
Raw Stores Binary data (Graphics Image and Digitized Sound). Max. is 255 bytes.

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