In this section, I’m going to cover how you can use SignalR outside of a Hub. In most asp.net core applications, you will likely want to communicate with the connect clients from within your application but outside of a Hub. You can accomplish this by using the HubContext.

For example, an ASP.NET Core MVC Controller or any other class that is instantiated by ASP.NET Core’s Dependency Injection.

The HubContext allows you to send messages to your connected clients. It has many of the same features to communicate with clients as when you are inside of a Hub.  

Partial Views and Child Actions are one the most used features of ASP.NET MVC. Partial Views provides us a way to create a reusable component that can be used in multiple Views. There are Actions which can be marked as Child Actions and these cannot be invoked via URL but inside views or partial views. Child Actions are no more available with ASP.NET Core. View Components are new way to implement this feature in ASP.NET Core. 

Please see the SQL Server Management Studio release notes for a comprehensive list of bug fixes. 

We are excited to announce the release of SQL Server Management Studio (SSMS) 17.3! 

PostgreSQL 14 Internals
A deep dive into the server mechanics 

The Internals of PostgreSQL
for database administrators and system developers 

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using Microsoft.SqlServer.TransactSql.ScriptDom;

namespace DbCop
{
    // Microsoft® SQL Server® 2012 Transact-SQL ScriptDom 
    // SQL Server 2012 managed parser, Supports SQL Server 2005+
    // SQLDom.msi (redist x86/x64)
    // http://www.microsoft.com/en-us/download/details.aspx?id=29065
    // X86: http://go.microsoft.com/fwlink/?LinkID=239634&clcid=0x409
    // X64: http://go.microsoft.com/fwlink/?LinkID=239635&clcid=0x409
    // Program Files\Microsoft SQL Server\110\SDK\Assemblies\Microsoft.SqlServer.TransactSql.ScriptDom.dll

    class Program
    {
        static void Main()
        {
            const string tSql = @"
                -- select * in PROCEDURE
                CREATE PROCEDURE dbo.SelectStarTest
                AS
                SELECT * FROM dbo.tbl1
                go

                -- select * in PROCEDURE with TableVar
                Create PRocedure SelectAll
                AS
                Declare @X table(Id integer)
                Select * from @x
                go

                -- select * in PROCEDURE with ctex
                CREATE PROCEDURE dbo.SelectAllCte
                AS 
                WITH ctex
                AS (
                SELECT * FROM sys.objects
                )
                SELECT * FROM ctex
                go

                -- normal select *
                select * from tbl1; 
                select * from dbo.tbl2;
            ";

            IList<ParseError> errors;
            TSqlScript sqlFragment;
            using (var reader = new StringReader(tSql))
            {
                var parser = new TSql110Parser(initialQuotedIdentifiers: true);
                sqlFragment = (TSqlScript)parser.Parse(reader, out errors);
            }

            if (errors != null && errors.Any())
            {
                var sb = new StringBuilder();
                foreach (var error in errors)
                    sb.AppendLine(error.Message);

                throw new InvalidOperationException(sb.ToString());
            }

            var i = 0;
            foreach (var batch in sqlFragment.Batches)
            {
                Console.WriteLine("Batch: {0}, Statement(s): {1}", ++i, batch.Statements.Count);
                foreach (var statement in batch.Statements)
                {
                    processStatement(statement);
                }
                Console.WriteLine();
            }

            Console.WriteLine("\nPress a key...");
            Console.Read();
        }

        private static void processStatement(TSqlStatement statement)
        {
            var createProcedureStatement = statement as CreateProcedureStatement;
            if (createProcedureStatement != null)
            {
                var statementList = createProcedureStatement.StatementList;
                foreach (var procedureStatement in statementList.Statements)
                {
                    processStatement(procedureStatement);
                }
            }

            var selectStatement = statement as SelectStatement;
            if (selectStatement != null)
            {
                var query = selectStatement.QueryExpression;
                var selectElements = ((QuerySpecification)query).SelectElements;
                foreach (var selectElement in selectElements)
                {
                    var expression = selectElement as SelectStarExpression;
                    if (expression == null) continue;
                    Console.WriteLine(
                        "`Select *` detected @StartOffset:{0}, Line:{1}, T-SQL: {2}",
                        expression.StartOffset,
                        expression.StartLine,
                        statementToString(selectStatement));
                }
            }
        }

        private static string statementToString(TSqlFragment selectStatement)
        {
            var text = new StringBuilder();
            for (var i = selectStatement.FirstTokenIndex; i <= selectStatement.LastTokenIndex; i++)
            {
                text.Append(selectStatement.ScriptTokenStream[i].Text);
            }
            return text.ToString();
        }
    }
}

Batch: 1, Statement(s): 1
`Select *` detected @StartOffset:140, Line:5, T-SQL: SELECT * FROM dbo.tbl1

Batch: 2, Statement(s): 1
`Select *` detected @StartOffset:368, Line:12, T-SQL: Select * from @x

Batch: 3, Statement(s): 1
`Select *` detected @StartOffset:659, Line:22, T-SQL: WITH ctex
                AS (
                SELECT * FROM sys.objects
                )
                SELECT * FROM ctex

Batch: 4, Statement(s): 2
`Select *` detected @StartOffset:753, Line:26, T-SQL: select * from tbl1;
`Select *` detected @StartOffset:791, Line:27, T-SQL: select * from dbo.tbl2;

If you been given the unenviable task of migrating your .NET Core project from ‘project.json’ to MSBuild (csproj), you are likely to find your muscle memory disrupted and the documentation lacking. Automated upgrades in Visual Studio and .NET Core CLI may aut 

3. Can be used in proprietary works
The license policy allow you to use this piece of code even inside commercial (not open source) 
projects. So you can use this software without giving away your own (precious?) source code.