4:select student; 5: 6:// The declaration above is equivalent to: 7:IEnumerable<StudentData> students 8:= redStarSchool.Students.Where(student => student.Age <= 23).OrderByDescending(student => student.Age).Select(student => student); Take:只返回限定数量的结果,在我们的数据中选择年龄小于...
Selector.from(products).groupBy("location",String.class).groupBy("style",Product.Style.class).having(group->{returngroup.avg("freight").compareTo(BigDecimal.valueOf(55))>0;}).setTransformer(newView<Product>(){protectedvoidsetAttributes(Tupletuple,Group<Product>group){tuple.set("maxPrice",group...
linq6: Select - Simple 1 This sample projects a sequence of ints 1+ higher than those in an existing array of ints. //c# static void Linq6() { var numbers = new[] { 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 }; var numsPlusOne = numbers.Select(n => n + 1); Console.WriteLin...
Before rounding, the scale of the logical exact intermediate result is the preferred scale for that operation. If the exact numerical result cannot be represented in precision digits, rounding selects the set of digits to return and the scale of the result is reduced from the scale of the int...
In scenarios where we wish to change the data returned from a stream (i.e. like Select in Linq), for example we’ll simply loop through each item and return the length of each string as a Stream, we can use 1 2 3 Stream<Integer> select = getData() .stream() .map(String::lengt...
julianhyde/linq4j - A port of LINQ (Language-Integrated Query) to Java daveclayton/json-patch - An RFC 6902 (JSON Patch) and reverse, plus RFC 7386 (JSON Merge Patch), implementation in Java using Jackson (2.2.x) watson-developer-cloud/java-sdk - Java SDK to use the IBM Watson servic...
In Java, you specify the exceptions thrown by a method with thethrowskeyword, but C# has no concept of checked exceptions – thethrowskeyword is not supported in C#. C# supports Language-Integrated Query (LINQ), which lets you use the reserved wordsfrom,select, andwhereto write queries agains...
of(TYPE_FACTORY, rowType, JavaRowFormat.ARRAY, false); final Expression e = rowPhysType.convertTo( Expressions.parameter(Enumerable.class, "input"), JavaRowFormat.SCALAR); final String expected = "input.select(new org.apache.calcite.linq4j.function.Function1() {\n" + " public int apply(...
SELECT ‘mydomain.model.Person’ AS DN_TYPE,A0.ID,AES_DECRYPT(A0.`NAME`, ‘MyKey’) FROM PERSON A0 Clearly this idea is not limited to MariaDB, and could be used with PostgreSQLpgp_sym_encrypt/pgp_sym_decryptfor example, and the equivalent on any other RDBMS. Note also, that there...
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleAppConvert { class Program { static void Main(string[] args) { ... C# i++ 代码 转载 mb5fe1902d5617a 2017-05-04 11:35:00 10000+阅读 ...