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  2. SQL syntax - Wikipedia

    en.wikipedia.org/wiki/SQL_syntax

    FLOAT, REAL and DOUBLE PRECISION; NUMERIC(precision, scale) or DECIMAL(precision, scale) DECFLOAT(precision) For example, the number 123.45 has a precision of 5 and a scale of 2. The precision is a positive integer that determines the number of significant digits in a particular radix (binary or decimal). The scale is a non-negative integer. A ...

  3. Comparison of relational database management systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_relational...

    Microsoft SQL Server: Microsoft: 1989 2022 [22] 2022-11-16; 2 years ago Proprietary: No Microsoft SQL Server Compact (Embedded Database) Microsoft: 2000 2011 (v4.0) Proprietary: No Mimer SQL: Mimer Information Technology 1978 11.0.8E 2024-10-22 Proprietary: No MonetDB: MonetDB Foundation [23] 2004 Aug2024 [24] 2024-08-26 Mozilla Public License ...

  4. Decimal data type - Wikipedia

    en.wikipedia.org/wiki/Decimal_data_type

    Although all decimal fractions are fractions, and thus it is possible to use a rational data type to represent it exactly, it may be more convenient in many situations to consider only non-repeating decimal fractions (fractions whose denominator is a power of ten). For example, fractional units of currency worldwide are mostly based on a ...

  5. Data type - Wikipedia

    en.wikipedia.org/wiki/Data_type

    The standard type hierarchy of Python 3. In computer science and computer programming, a data type (or simply type) is a collection or grouping of data values, usually specified by a set of possible values, a set of allowed operations on these values, and/or a representation of these values as machine types. [1]

  6. Comparison of data modeling tools - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_data...

    SQL Server Management Studio: Microsoft: Un­known Proprietary: MS SQL Server: Windows Standalone 2005 ModelRight ModelRight Enterprises, SMBs, personal Proprietary: Access, MS SQL Server, Oracle, MySQL, PostgreSQL, IBM Db2: Windows Standalone 2005 MySQL Workbench: MySQL (An Oracle Company) SMBs - personal Proprietary or GPL: MySQL: Linux ...

  7. DataReader - Wikipedia

    en.wikipedia.org/wiki/DataReader

    Using the strongly typed retrieval methods can be more cumbersome, especially without specific knowledge of the underlying data. Numeric values in the database can translate to several .NET types: Int16, Int32, Int64, Float, Decimal, or Currency. Trying to retrieve a value using the wrong type results in an exception being thrown, which stops ...

  8. Floating-point arithmetic - Wikipedia

    en.wikipedia.org/wiki/Floating-point_arithmetic

    The "decimal" data type of the C# and Python programming languages, and the decimal formats of the IEEE 754-2008 standard, are designed to avoid the problems of binary floating-point representations when applied to human-entered exact decimal values, and make the arithmetic always behave as expected when numbers are printed in decimal.

  9. List of SQL reserved words - Wikipedia

    en.wikipedia.org/wiki/List_of_SQL_reserved_words

    Reserved words in SQL and related products In SQL:2023 [3] In IBM Db2 13 [4] In Mimer SQL 11.0 [5] In MySQL 8.0 [6] In Oracle Database 23c [7] In PostgreSQL 16 [1] In Microsoft SQL Server 2022 [2]