str: String expression to operate on. Can be a constant, column, or function, and any combination of string operators. trim_str: String expression to trim from the beginning and end of the input string. Can be a constant, column, or function, and any combination of arithmetic operators.Def...
CHAR_LENGTH(String):Returns the number of characters in the string. CHARACTER_LENGTH(String):Returns the number of characters in the string. LENGTH(String): Returns the number of characters in the string. For example, to obtain the number of characters ofContract Type, you can use the stateme...
[System.Data.Objects.DataClasses.EdmFunction("SqlServer","DIFFERENCE")]publicstaticint? Difference(stringstring1,stringstring2); 参数 string1 String 第一个字符串。 string2 String 第二个字符串。 返回 Nullable<Int32> 两个字符串之间的 SOUNDEX 差值。
[System.Data.Objects.DataClasses.EdmFunction("SqlServer","ISNUMERIC")]publicstaticint? IsNumeric(stringarg); 參數 arg String 字串運算式。 傳回 Nullable<Int32> 如果輸入運算式是有效的數字資料型別,則為 1,否則為 0。 屬性 EdmFunctionAttribute ...
/// d ##class(PHA.TEST.SQLFunction).String() ClassMethod String() { &sql( SELECT STRING('a','b','c'), STRING('a',' ','c'), STRING('a','','c'), STRING('a',NULL,'c') INTO :w,:x,:y,:z ) if SQLCODE '= 0 { w !,"Error code ",SQLCODE } else { w !,"Resulti...
All built-in string functions are deterministic. This means they return the same value any time they are called with a specific set of input values. For more information about function determinism, see Deterministic and Nondeterministic Functions. See Also Reference Functions (Transact-SQL) English...
fn:string() as xs:string fn:string($arg as item()?) as xs:string Arguments$arg Is a node or an atomic value.RemarksIf $arg is the empty sequence, the zero-length string is returned. If $arg is a node, the function returns the string value of the node that is obtained by using...
= "endDate")> _ Public Shared Function DateDiff ( _ datePartArg As String, _ startDate As String, _ endDate As String _ ) As Nullable(Of Integer) '用途 Dim datePartArg As String Dim startDate As String Dim endDate As String Dim returnValue As Nullable(Of Integer) returnValue = Sql...
--LEN ( string_expression ) selectlen('ddd'); --3 selectlen('ddd'); --5 selectlen('ddd ddd'); --7 selectlen('测试') --2 /*字符串按分隔符位置截取函数*/ IFOBJECT_ID('poscopy')ISNOTNULL dropfunctionposcopy GO createfunctionposcopy( ...
[System.Data.Objects.DataClasses.EdmFunction("SqlServer","STR")]publicstaticstringStringConvert(double? number); 参数 number Nullable<Double> 数值表达式。 返回 String 转换为字符串的数字输入表达式。 属性 EdmFunctionAttribute 注解 不能直接调用此函数。 此函数只能出现在 LINQ to Entities 查询中。