Database Types

Database Types Ppt
Database Types In Sql Server

11.1.1 Numeric Data Type Syntax
11.1.2 Integer Types (Exact Value) - INTEGER, INT, SMALLINT, TINYINT,MEDIUMINT, BIGINT
11.1.3 Fixed-Point Types (Exact Value) - DECIMAL, NUMERIC
11.1.4 Floating-Point Types (Approximate Value) - FLOAT, DOUBLE
11.1.5 Bit-Value Type - BIT
11.1.6 Numeric Type Attributes
11.1.7 Out-of-Range and Overflow Handling

A data type is the characteristic of a variable that determines what kind of data it can hold. Data types include those in the following table as well as user-defined types and specific types of objects. Set intrinsic data types. The following table shows the supported data types, including storage sizes and ranges. MySQL supports SQL data types in several categories: numeric types, date and time types, string (character and byte) types, spatial types, and the JSON data type. This chapter provides an overview and more detailed description of the properties of the types in each category, and a summary of the data type storage requirements. Each data type has an external representation determined by its input and output functions. Many of the built-in types have obvious external formats. However, several types are either unique to PostgreSQL, such as geometric paths, or have several possible formats, such as the date and time types. Data types in c refer to an extensive system used for declaring variables or functions of different types. The type of a variable determines how much space it occupies in storage and how the bit pattern stored is interpreted. They are again arithmetic types and they are used to define variables that.

MySQL supports all standard SQL numeric data types. These types include the exact numeric data types (INTEGER, SMALLINT, DECIMAL, and NUMERIC), as well as the approximate numeric data types (FLOAT, REAL, and DOUBLE PRECISION). The keyword INT is a synonym for INTEGER, and the keywords DEC and FIXED are synonyms for DECIMAL. MySQL treats DOUBLE as a synonym for DOUBLE PRECISION (a nonstandard extension). MySQL also treats REAL as a synonym for DOUBLE PRECISION (a nonstandard variation), unless the REAL_AS_FLOAT SQL mode is enabled.

The BIT data type stores bit values and is supported for MyISAM, MEMORY, InnoDB, and NDB tables.

For information about how MySQL handles assignment of out-of-range values to columns and overflow during expression evaluation, see Section 11.1.7, “Out-of-Range and Overflow Handling”.

Database Types Ppt

For information about storage requirements of the numeric data types, see Section 11.7, “Data Type Storage Requirements”.

SS (string set) type, NS (number set) type, or BS (binary set) type. The DynamoDBTypeConverter interface lets you map your own arbitrary data types to a data type that is natively supported by DynamoDB.

Database Types In Sql Server

For descriptions of functions that operate on numeric values, see Section 12.6, “Numeric Functions and Operators”. The data type used for the result of a calculation on numeric operands depends on the types of the operands and the operations performed on them. For more information, see Section 12.6.1, “Arithmetic Operators”.