SqlClient 組件: System.Data.Entity.dll 指出輸入值是否為有效的數字型別 (Numeric Type)。 C# 複製 [System.Data.Objects.DataClasses.EdmFunction("SqlServer", "ISNUMERIC")] public static int? IsNumeric(string arg); 參數 arg String 字串運算式。 傳回 Nullable<Int32> 如果輸入運算式是有效的...
Capitalizes the first character in each word in the input string. Words are delimited by non-alphanumeric characters. initcap(str) Arguments str: String expression to operate on. Can be a constant, column, or function, and any combination of string operators. Related functions lower,upper Viewi...
SqlFunctions.IsNumeric(String) 方法参考 反馈 定义命名空间: System.Data.Entity.SqlServer 程序集: EntityFramework.SqlServer.dll 指示输入值是否为有效的数值类型。 C# 复制 [System.Data.Entity.DbFunction("SqlServer", "ISNUMERIC")] [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA...
This function is translated to a corresponding function in the database. For information about the corresponding SQL Server function, see STR (Transact-SQL). StringConvert(Nullable<Decimal>) Returns character data converted from numeric data. C# Copy [System.Data.Objects.DataClasses.EdmFunction("...
(There is an existing SQL function Length() that calculates the length of string values.) GLength() is deprecated; expect it to be removed in a future MySQL release. Use ST_Length() instead. IsClosed(ls) ST_IsClosed() and IsClosed() are synonyms. For more information, see the ...
This topic provides reference information about string function compatibility between Microsoft SQL Server 2019 and Amazon Aurora PostgreSQL. You can gain insights into how various string functions in SQL Server map to their PostgreSQL equivalents, which is crucial fo...
int,bigint,smallint,tinyint,numeric,float,real,bit, 10 進数、smallmoney、money,datetime,datetime2nvarchar(4000) 注釈 STRING_AGGは、すべての式を行から取り出し、それらを 1 つの文字列に連結する集計関数です。 式の値は、暗黙的に文字列型に変換され、連結されます。 文字列への暗黙の変換...
The .NET Framework Data Provider for SQL Server (SqlClient) provides String functions that perform operations on an input String and return a String or numeric value result. These functions are in the SqlServer namespace, which is available when you use SqlClient. A provider's namespace propert...
Table 14.12 String Functions and Operators NameDescription ASCII() Return numeric value of left-most character BIN() Return a string containing binary representation of a number BIT_LENGTH() Return length of argument in bits CHAR() Return the character for each integer passed CHAR_LENGTH()...
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