Precision scale and length Transact SQL SQL Server
In SQL Server the default maximum precision of numeric and decimal data types is 38 Length for a numeric data type is the number of bytes that are used to store the number For varchar and char the length of a character string is the number of bytes For nvarchar and nchar the length of the character string is the number of byte pairs
Comparing SQL Server Datatypes Size and Performance for Storing Numbers, SQL Server has nine different data types for storing numeric information but they have differences that may make them more or less suitable for different uses Clearly if you need to store a decimal value than the INT data type is inappropriate
Int bigint smallint and tinyint Transact SQL SQL Server
Converting integer data When integers are implicitly converted to a character data type if the integer is too large to fit into the character field SQL Server enters ASCII character 42 the asterisk Integer constants greater than 2 147 483 647 are converted to the decimal data type not the bigint data type
Data types Transact SQL SQL Server Microsoft Learn, A data type is an attribute that specifies the type of data that the object can hold integer data character data monetary data date and time data binary strings and so on SQL Server supplies a set of system data types that define all the types of data that can be used with SQL Server
Numeric types SQL Server Microsoft Learn
Numeric types SQL Server Microsoft Learn, SQL Server supports the following numeric types In this section bit Transact SQL decimal and numeric Transact SQL float and real Transact SQL int bigint smallint and tinyint Transact SQL money and smallmoney Transact SQL Feedback Was this page helpful Provide product feedback Get help at Microsoft Q A Additional resources Events
Numeric Data Type SQL Scaler Topics
Difference between numeric float and decimal in SQL Server
Difference between numeric float and decimal in SQL Server 8 Answers Sorted by 617 use the float or real data types only if the precision provided by decimal up to 38 digits is insufficient Approximate numeric data types see table 3 3 do not store the exact values specified for many numbers they store an extremely close approximation of the value Technet
SQL Server Data Types With Examples
Exact Numerics SQL Server Data Types Int Data Type Int is used to store a whole number and is the primary integer data type Range of values 2 147 483 648 to 2 147 483 647 Storage size 4 Bytes declare an int variable assign it a value and increment it DECLARE MyInt int 0 SET MyInt 1 SELECT MyInt AS MyInt BigInt Data Type SQL Server Data Types Decimal Numeric Bit Money Date Int. When you want to convert from float or real to character data using the STR string function is usually more useful than CAST This is because STR enables more control over formatting For more information see STR Transact SQL and Functions Transact SQL Prior to SQL Server 2016 13 x conversion of float values to decimal or numeric Exact numeric data types Exact numeric data types store exact numbers such as integer decimal or monetary amount The bit store one of three values 0 1 and NULL The int bigint smallint and tinyint data types store integer data The decimal and numeric data types store numbers that have fixed precision and scale
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