What is the Bigint in DB2?
BIGINT is used to store big integers with a precision of 63 bits. The range of big integers is -9,223,372,036,854,775,808 to +9,223,372,036,854,775,807. When you design database tables, it is a good practice to choose the appropriate integer types to save the space.
What is the maximum size of character data type in DB2?
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 the size of Smallint in DB2?
15 bits
A small integer is a binary integer with a precision of 15 bits. The range of small integers is -32768 to +32767.
Is Bigint and long the same?
The equivalent of Java long in the context of MySQL variables is BigInt. In Java, the long datatype takes 8 bytes while BigInt also takes the same number of bytes.
What is Decfloat in Db2?
String to DECFLOAT: An expression that returns a value of any built-in numeric data type. 34 or 16. Specifies the number of digits of precision for the result. The default is 34. String to DECFLOAT string-expression.
What is the difference between Smallint and integer?
The INTEGER and SMALLINT data types hold small whole numbers. INTEGER values have 32 bits and can represent whole numbers from –2 31–1 through 2 31–1. SMALLINT values have only 16 bits. They can represent whole numbers from –32,767 through 32,767.
What is the max varchar for DB2?
32704
The maximum length is 32704 in byte. This is important if you are using a UTF-8 encoded database. In version db2 9.7, the highest I can go is 32672: CAST(tableName. clobField as varchar(32672)) –32673 fails.
When should I use BIGINT?
BigInt is a new data type intended for use when integer values are larger than the range supported by the Number data type. This data type allows us to safely perform arithmetic operations on large integers, represent high-resolution timestamps, use large integer IDs, and more without the need to use a library.
How big is a BIGINT?
A big integer is a binary integer with a precision of 63 bits. The range of big integers is -9223372036854775808 to +9223372036854775807.
When should I use Smallint in SQL Server?
If you know that some columns in a table that will have millions of row or even an little table that will FK’ed to multi-million-row that doesn’t need an 4 bytes integer to store their data, but an 2 byte would suffice – use SMALLINT. If values in the range 0-255 is enough, TINYINT.