Approximate Numeric Data Types in SQL Server Transact-SQL
What are approximate numeric data types supported in SQL Server Transact-SQL?
Approximate numeric data types are used to hold numeric values with floating scales.
There are 3 different approximate numeric data types supported in SQL Server Transact-SQL:
1. FLOAT - Used to hold values with different precisions and floating scales specified in the format of FLOAT(p), where p is the precision presenting the number of bits used to store the mantissa part. For example, FLOAT(12) stores floating numbers with a 12-bit mantissa.
2. DOUBLE PRECISION - Use to hold values with a large precision and floating scales using 8-byte storage to store floating numbers in the ranges of -1.79E+308 to -2.23E-308, 0 and 2.23E-308 to 1.79E+308. DOUBLE PRECISION is identical to FLOAT(53).
3. REAL - Use to hold values with a normal precision and floating scales using 4-byte storages to store floating numbers in the ranges of -3.40E+38 to -1.18E-38, 0 and 1.18E-38 to 3.40E+38.
Here are some good examples of approximate numeric values:
PRINT 9.22337203685e+010; -- FLOAT(53) PRINT 9.22337e+010; -- FLOAT(24)
2017-04-19, 162👍, 0💬
How to run Queries with SQL Server Management Studio Express in SQL Server? 1. Launch and connect SQ...
How To Generate Random Numbers with the RAND() Function in SQL Server Transact-SQL? Random numbers a...
How To Create a View on an Existing Table in SQL Server? If you want to a view on an existing table,...
How to set database to be READ_ONLY in SQL Server? Databases in SQL Server have two update options: ...
How To Use GO Command in "sqlcmd" in SQL Server? "sqlcmd" is a command line client application to ru...