Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft FabricAn aggregate
The following code is an example of a user-defined aggregate function that concatenates a set of string values taken from a column in a table: C# Visual Basic .NET C# Copy using System; using System.Data; using Microsoft.SqlServer.Server; using...
The aggregate functions MIN and MAX compute the lowest and highest values in the column, respectively. If there is a WHERE clause, the MIN and MAX functions return the lowest or highest of values from selected rows. Example 6.25 shows the use of the aggregate function MIN. ...
Applies to: SQL Server Azure SQL Managed Instance Creates a user-defined aggregate function whose implementation is defined in a class of an assembly in the .NET Framework. For the Database Engine to bind the aggregate function to its implementation, the .NET Framework assembly that contains the...
If a numeric expression is not provided, this function aggregates each measure within the current query context by using the default aggregation operator that is specified for each measure. If a numeric expression is provided, this function first evaluates, and then sums, the numeric expression ...
SQL Server Analysis Services provides functions to aggregate measures along the dimensions that are contained in measure groups. Theadditivityof an aggregation function determines how the measure is aggregated across all the dimensions in the cube. Aggregation functions fall into three levels of additivity...
http://docs.oracle.com/cd/E11882_01/server.112/e26088/functions003.htm#SQLRF20035 Aggregatefunctions return a single result row based on groups of rows, rather than onsingle rows. Aggregate functions can appear in select lists and in ORDER BY andHAVING clauses. They are com...
The following table shows the SqlClient aggregate functions. Expand table FunctionDescription AVG(expression) Returns the average of the values in a collection. Null values are ignored. Arguments AnInt32,Int64,Double, andDecimal. Return Value ...
expression: Expression to operate on. Can be a constant, column, or function, and any combination of arithmetic operators. Viewbit_orquery example bit_xor Computes the bitwise exclusive OR of all non-null input values. bit_xor(expression) ...
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)) ...