ISqlHavingAndOr<TBuilder>.AndHavingValue(string left, SqlBinaryOperator sqlOperator, object value) Method

.NET Standard 2.x

Adds the AND logical operator and a search condition to the HAVING clause. Specifies a SQL expression on the left the operator and a specific value on the right of the operator.

Namespace: SnapObjects.Data

Assembly: SnapObjects.Data.dll

Syntax

  TBuilder AndHavingValue(string left, SqlBinaryOperator sqlOperator, object value);

Parameters

left System.String

An expression on the left of the operator.

SqlBinaryOperator SnapObjects.Data.SqlBinaryOperator

An enumeration value of SqlBinaryOperator, which is the operator to test the expression on the left and the value on the right.

value System.Object

The specific value on the right of the operator.

Returns

TBuilder

Returns the TBuilder object which can be used to add more search conditions to the current HAVING clause.

Examples

The following code example demonstrates how to use the AndHavingValue method to add an AND condition to the HAVING clause.

using SnapObjects.Data;
using System;

namespace Appeon.ApiDoc.ISqlHavingAndOrExamples
{
    public class AndHavingValueExample
    {
        private readonly SchoolContext _context;

        public AndHavingValueExample(SchoolContext dataContext)
        {
            // Sets the data context
            _context = dataContext;
        }

        public void Example2()
        {
            var sqlQueryBuilder = new SqlQueryBuilder();

            // Groups "StudentGrade" table by StudentID and CourseID, and gets the sum of Grade of each group.
            // Specifies the HAVING condition for group as "StudentID > 0" and StudentID smaller than 10.
            sqlQueryBuilder
                .Select("StudentID")
                .Select("sum(Grade)")
                .From("StudentGrade")
                .GroupBy("StudentID, CourseID")
                .HavingRaw("StudentID > 0")
                .AndHavingValue("StudentID", SqlBinaryOperator.LessThan, 10);

            // Converts to raw SQL for the database corresponding to the data context.
            string sql = sqlQueryBuilder.ToSqlString(_context);

            Console.WriteLine(sql);
            
            /*This code example produces the following output:           
              SELECT
                [StudentID],
            sum(Grade)
            FROM [StudentGrade]
            GROUP BY
                [StudentID],
                [CourseID]
                HAVING ([StudentID] > 0
                AND [StudentID] < 10)
           */
        }
    }
}

Applies to

.NET Standard

2.x