This function can be used with the CONVERT function in Microsoft SQL Server to write UTF-16 little-endian encoded Unicode strings to SQL Server versions that do not support UTF-8 encoding. sqlserver_bin2hexstr('hello') = '0x68656C6C6F' sqlserver_bin2hexstr(str_utf16_le('hello')) = '0x...
内置函数说明(FUNCTION) Sever 提供了众多功能强大、方便易用的函数。使用这些函数,可以极大地提高数据库的管理。SQL Server中的函数从功能方面主要分为以下几类:字符串函数、数学函数、数据转换函数、文本和图像函数、日期和时间函数、系统函数等。 内置函数分类 聚合函数、数学函数、字符串函数、日期函数、转换函数、其...
FunctionDescription Aggregate FunctionsAn aggregator will compute a single result value over a group of values and will have an identity value for the case that the group is empty. Analytic FunctionsAnalytic functions compute an aggregate value based on a group of rows. However, unlike aggregate fu...
10 between, in, rlike, regexp, ilike, like, is [not] [NULL, true, false], is [not] distinct from 11 and 12 or String and binary functions Expand table FunctionDescription expr1 || expr2 Returns the concatenation of expr1 and expr2. aes_decrypt(expr, key[, mode[, paddin...
Built-in Function Last Updated:2020-09-25 OverviewThe following types of built-in functions are provided: [String Function](#String Function) [Conditional Function](#Conditional Function) [Type Conversion Function](#Type Conversion Function) [Arithmetic Function](#Arithmetic Function) [Time-rela...
Feature: It is a positional number system conversion function that returns the string form of an integer in a specific binary system. The input parameter may be an integer string. If you want to convert the return value of a function to an integer, you can use the CAST function.Return ...
TheJSON_MODIFYfunction updates the value of a property in a JSON string and returns the updated JSON string. The following example updates the value of a JSON property in a variable that contains JSON. SQL SET@info = JSON_MODIFY(@jsonInfo,'$.info.address[0].town','London'); ...
FunctionDescriptionExample @@connectionsReturns the number of connections or attempted connectionsselect @@connections as 'Total Login Attempts' @@cpu_busyReturns CPU processing time in milliseconds for SQL Server activityselect @@cpu_busy as 'CPU Busy', getdate() as 'Since' ...
aggregate(expr, start, merge, finish) - Applies a binary operator to an initial state and all elements in the array, and reduces this to a single state. The final state is converted into the final result by applying a finish function. ...
The following table lists each built-in (native) function and operator and provides a short description of each one. For a table listing functions that are loadable at runtime, see Section 14.2, “Loadable Function Reference”. Table 14.1 Built-In Functions and Operators NameDescriptionDeprecated ...