What are SQL Server data types?
In SQL Server, each column, local variable, expression, and parameter has a related data type. 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.
How many data types are there is SQL Server?
It has four kinds of data types. Below are the character string SQL server data types with examples. It is a character string with a fixed width.
Which numeric data type has a precision of 2 2 16 in SQL?
Exact numeric data types
| Type | Value | Disk usage |
|---|---|---|
| smallint (alias int2) | 16-bit values in range -32,768 to 32,767 | 2 bytes |
| integer (alias int and int4) | 32-bit values in range -2,147,483,648 to 2,147,483,647 | 4 bytes |
| bigint (alias int8) | 64-bit values in range -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 | 8 bytes |
What is data type text in SQL?
TEXT(size) Holds a string with a maximum length of 65,535 bytes. BLOB(size) For BLOBs (Binary Large Objects). Holds up to 65,535 bytes of data.
What is difference between decimal and numeric in SQL Server?
There is a small difference between NUMERIC(p,s) and DECIMAL(p,s) SQL numeric data type. NUMERIC determines the exact precision and scale. DECIMAL specifies only the exact scale; the precision is equal or greater than what is specified by the coder. In other words, DECIMAL gives you some leeway.
Does SQL Server have double data type?
The decimal(x,y) SQL Server type is for when you want exact decimal numbers rather than floating point (which can be approximations). This is in contrast to the C# “decimal” data type, which is more like a 128-bit floating point number. MSSQL’s float type is equivalent to the 64-bit double type in .
What are the types of data type?
data type
| Data Type | Used for | Example |
|---|---|---|
| Integer | Whole numbers | 7, 12, 999 |
| Float (floating point) | Number with a decimal point | 3.15, 9.06, 00.13 |
| Character | Encoding text numerically | 97 (in ASCII, 97 is a lower case ‘a’) |
| Boolean | Representing logical values | TRUE, FALSE |
Is there a reference sheet for SQL Server data types?
SQL Server Data Types Reference. This sheet provides an easy reference to look up limitations and benefits for each SQL Server data type. There are plenty of sql data types to use in SQL Server. Knowing the limitations and benefit of each sql data type will soon pay off.
What are the data types in SQL Server?
Data types (Transact-SQL) In SQL Server, each column, local variable, expression, and parameter has a related data type. 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.
What is a T-SQL reference topic?
The T-SQL reference topics encompass multiple versions of SQL Server, starting with 2008, as well as the other Azure SQL services. Near the top of each topic is a section that indicates which products and services support subject of the topic. For example, this topic applies to all versions, and has the following label.
What is the difference between is and base_type in SQL Server?
Is the name of the alias data type or user-defined type. Type names must comply with the rules for identifiers. base_type Is the SQL Server supplied data type on which the alias data type is based. base_typeis sysname, with no default, and can be one of the following values: bigint binary(n) bit char(n) date datetime datetime2 datetimeoffset