What is VARGRAPHIC DB2 data type?
What is VARGRAPHIC DB2 data type?
An expression that returns a value that is a built-in character string data type. An integer constant that specifies the length attribute for the resulting varying-length graphic string. The value must be between 0 and the maximum length for the VARGRAPHIC data type in the string units of the result.
How do you find the length of a string in DB2?
For every character that is 2 bytes or less in the string, DB2 counts a length of 1. Specifies that DB2 is to count the length by 32-bit (or 4-byte) code units. For every character that is 4 bytes or less in the string, DB2 counts a length of 1.
What is VARGRAPHIC?
The VARGRAPHIC function returns a graphic string representation of a: character string value, converting single byte characters to double byte characters. graphic string value, if the first argument is any type of graphic string.
What is the maximum length for VARCHAR in DB2?
String Length Limits
| Item | Limit |
|---|---|
| Max length of CHAR | 255 bytes |
| Max length of GRAPHIC | 127 DBCS characters |
| Max length of BINARY | 255 bytes |
| Max length of VARCHAR | 4046 bytes for 4-KB pages 8128 bytes for 8-KB pages 16320 bytes for 16-KB pages 32704 bytes for 32-KB pages |
What is varchar in DB2?
Db2 VARCHAR type is used to store variable-length character strings. To define a variable-length character string column, you use the following syntax: column_name VARCHAR(n) In this syntax, n is a positive integer that represents the maximum length of n bytes that the column can store.
What is the maximum size of CHAR data type in Db2?
255 bytes
Limits in Db2 for z/OS
| Item | Limit |
|---|---|
| Maximum length of CHAR | 255 bytes |
| Maximum length of GRAPHIC | 127 double-byte characters |
| Maximum length of BINARY | 255 bytes |
What is varchar in Db2?
What is the difference between VARCHAR and char?
CHAR is fixed length and VARCHAR is variable length. CHAR always uses the same amount of storage space per entry, while VARCHAR only uses the amount necessary to store the actual text. The char is a fixed-length character data type, the varchar is a variable-length character data type.