Search notes:

SQL Server: datatype float

float(n) is an approximate numerical data type.
The optional n (which must be between 1 and 53) specifies the number of mantissa-bits. If not specified, n defaults to 53.
real is a synonym for float(24).
double precision is a synonym for float(53).
For n between 1 and 24, float(n) requires 4 bytes for storage. For n between 25 and 53, it requires 8 bytes of storage.

See also

IEEE-754 (Floating Point Arithmetic - float/double etc)
data types

Index

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/developm...', 1761315492, '216.73.216.81', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/development/databases/SQL-Server/T-SQL/data-types/float/index(51): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78