That function defines in fact an aggregate ! In SQL terms, this aggregate would look like the following table:CREATE VIEW EVENTS_WAITS_SUMMARY_BY_Func_i AS SELECT col_1, col_2, ..., col_{i-1}, Func_i(col_i), CO
Creating a user-defined aggregate function in SQL Server involves the following steps: Define the user-defined aggregate function as a class in a Microsoft .NET Framework-supported language. For more information about how to program user-defined aggregates in the CLR, see CLR user-defined aggregat...
Without a specified grouping, each aggregate function is going to run on the whole set of result rows and return a single value. And like normal expressions, giving your aggregate functions an alias ensures that the results will be easier to read and process. Common aggregate functions Here are...
To access Navicat's function editor, click the Function button in the main button bar and then click on "New Function" in the Objects toolbar: Navicat will start us off with the main function definition. From there, we'll supply the function name, input parameters, and body: CREATE FUNCT...
Function NameAll TypesNumeric Built-in Data Types COUNT X X MIN X MAX X AVG X SUM XAggregates are permitted only in the following: A SelectItem in a SelectExpression. A HAVING clause. An ORDER BY clause (using an alias name) if the aggregate appears in the result of the relevant qu...
* sql解析类,提供更智能的count查询sql @@ -46,13 +44,112 @@ public class CountSqlParser { public static final String KEEP_ORDERBY = "/*keep orderby*/"; private static final Alias TABLE_ALIAS; private static final Set<String> SIMPLE_FUNCTION = new HashSet<String>(); //<editor-fold ...
} [Microsoft.SqlServer.Server.SqlFunction] public static SqlBytes BinaryDecompress(SqlBytes inputBinary) //解密 { byte[] inputBytes = (byte[])inputBinary.Value; using (MemoryStream memStreamIn = new MemoryStream(inputBytes)) { using (GZipStream s = ...
return (new SqlBytes(ms.ToArray())); } } [Microsoft.SqlServer.Server.SqlFunction] public static SqlBytes BinaryDecompress(SqlBytes inputBinary)//解密 { byte[] inputBytes = (byte[])inputBinary.Value; using (MemoryStream memStreamIn = new MemoryStream(inputBytes)) ...
This feature will be removed in the next version of Microsoft SQL Server. Do not use this feature in new development work, and modify applications that currently use this feature as soon as possible. Enumerates values for the AggregateFunction property. ...
This project is a collection of tools for use with the spatial types in SQL Server. This project does not provide an end-user application, but rather a set of reusable functions which applications can make use of. These functions may include data conver