How many bytes is a CHAR in SQL?
1 byte
CHAR takes up 1 byte per character. So, a CHAR(100) field (or variable) takes up 100 bytes on disk, regardless of the string it holds. VARCHAR is a variable length string data type, so it holds only the characters you assign to it. VARCHAR takes up 1 byte per character, + 2 bytes to hold length information.
What is Character Set in Teradata?
The Teradata database supports a fixed number of character set types for each char or varchar column in a table. The character set for U.S. and European applications which limit character data to the ASCII or ISO 8859 Latin1 character sets. This is the default.
What is CHAR data type in database?
The CHAR data type stores character data in a fixed-length field. Data can be a string of single-byte or multibyte letters, numbers, and other characters that are supported by the code set of your database locale. You can enter single-byte or multibyte characters in a CHAR column.
What is VARCHAR in Teradata?
VARCHAR is also known as CHARACTER VARYING. LONG VARCHAR. specifies a varying-length column, of the maximum length, for character string data. LONG VARCHAR is equivalent to VARCHAR(32000) or VARCHAR(64000) depending on which Teradata version your server is running. Date Data.
How many bytes is a CHAR?
Windows 64-bit applications
| Name | Length |
|---|---|
| char | 1 byte |
| short | 2 bytes |
| int | 4 bytes |
| long | 4 bytes |
What is CHAR function SQL?
The CHAR() function returns the character based on the ASCII code.
What is the size of CHAR data type?
Data Types and Sizes
| Type Name | 32–bit Size | 64–bit Size |
|---|---|---|
| char | 1 byte | 1 byte |
| short | 2 bytes | 2 bytes |
| int | 4 bytes | 4 bytes |
| long | 4 bytes | 8 bytes |
What is integer in Teradata?
Teradata – Data Types
| Data Types | Length (Bytes) | Range of values |
|---|---|---|
| BYTEINT | 1 | -128 to +127 |
| SMALLINT | 2 | -32768 to +32767 |
| INTEGER | 4 | -2,147,483,648 to +2147,483,647 |
| BIGINT | 8 | -9,233,372,036,854,775,80 8 to +9,233,372,036,854,775,8 07 |
What is decimal in Teradata?
DECIMAL is a Teradata synonym for NUMERIC. Decimal numbers are scaled by the power of ten equal to the number of fractional digits. The number is stored as a two’s complement binary number in 1, 2, 4, 8, or 16 bytes. The number of bytes used for a decimal value depends on the total number of digits in that value.