1 row in set (0.00 sec) 1. 2. 3. 4. 5. 6. 7. ATAN(X) 此函数返回X的反正切。 SQL> SELECT ATAN(1); +---+ | ATAN(1) | +---+ | 0.78539816339745 | +---+
returns the absolute value of the specified number. acos( cosine ) returns the angle in radians for the specified cosine. asin( sin ) returns the angle in radians for the specified sine. atan( tangent ) returns the angle in radians for the specified tangent. atan2( x , y ) two-argument...
SqlFunctions.IsNumeric(String) 方法參考 意見反應 定義命名空間: System.Data.Objects.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...
SqlFunctions 方法 閱讀英文版本 TwitterLinkedInFacebook電子郵件 參考 意見反應 定義 命名空間: System.Data.Entity.SqlServer 組件: EntityFramework.SqlServer.dll 指出輸入值是否為有效的數字型別 (Numeric Type)。 C# [System.Data.Entity.DbFunction("SqlServer","ISNUMERIC")] [System.Diagnostics.CodeAnalysis.Supp...
PL/SQL’s built-in numeric functions Name Description ABS Returns the absolute value of a number. ACOS Returns the inverse cosine. ASIN Returns the inverse sine. ATAN Returns the inverse tangent. ATAN2 Returns the inverse tangent of a value, but allows you to pass that value ...
when a row is inserted in table TZ*/ CREATE TRIGGER Ztrig ON TZ FOR INSERT AS BEGIN INSERT TY VALUES ('') END /*FIRE the trigger and find out what identity values you get with the @@IDENTITY and SCOPE_IDENTITY functions*/ INSERT TZ VALUES ('Rosalie') ...
Sql Assembly: Mono.Android.dll Returns a list of the math functions available with this database. public string? NumericFunctions { [Android.Runtime.Register("getNumericFunctions", "()Ljava/lang/String;", "GetGetNumericFunctionsHandler:Java.Sql.IDatabaseMetaDataInvoker, Mono.Android, Version=...
Built-in Functions (Transact-SQL) Aggregate Functions (Transact-SQL) Analytic Functions (Transact-SQL) Collation Functions (Transact-SQL) Configuration Functions (Transact-SQL) Conversion Functions (Transact-SQL) Cryptographic Functions (Transact-SQL) Cursor Functions (Transact-SQL) Data Type Functions (...
All other mathematical functions are vendor extensions, and several common ones can be planned in most SQL implementations. They are implemented under assorted names and often with slightly different functionality.Joe CelkoJoe Celko's SQL for Smarties (Third edition)...
如果科学记数法指数大于308(308-(整数数-1))，ISNUMERIC会生成SQLCODE-7，指数超出范围错误。例如，IS...