var blogs = context.Blogs
    .FromSql("SELECT * FROM dbo.Blogs")
    .ToList();

var blogs = context.Blogs
  .FromSql("EXECUTE dbo.GetMostPopularBlogs")
  .ToList();

var user = "johndoe";

var blogs = context.Blogs
  .FromSql("EXECUTE dbo.GetMostPopularBlogsForUser {0}", user)
  .ToList();

var user = new SqlParameter("user", "johndoe");
var blogs = context.Blogs
  .FromSql("EXECUTE dbo.GetMostPopularBlogsForUser @user", user)
  .ToList();

 var results = _context.Contacts.FromSql(
@"SELECT Id, Name Address, City, State, Zip 
    FROM Contacts 
    WHERE Name IN (@p0, @p1)", name1, name2);

var nameParameter = new SqlParameter
{
  ParameterName = "@name",
  Value = "doc",
  Direction = ParameterDirection.Input,
  SqlDbType = SqlDbType.NVarChar
};

var posts = context.Posts
  .FromSql("SELECT * FROM dbo.GetMatchingPostByTitle({0})", searchTerm)
  .Where(p => p.BlogId == 1)
  .OrderByDescending(p => p.CreateDate)
  .ToList();

var searchTerm = ".NET";
var blogs = context.Blogs
  .FromSql("SELECT * FROM dbo.SearchBlogs {0}", searchTerm)
  .Include(b => b.Posts)
  .ToList();

  context.Database.ExecuteSqlCommand("UPDATE dbo.People SET FirstName = 'Jane' WHERE PersonId = 30");

context.Database.ExecuteSqlCommand("usp_CreateShipper @p0, @p1",
  parameters: new[] { "hello", "world" });

using (var connection = context.Database.GetDbConnection())
{
    connection.Open();
 
    using (var command = connection.CreateCommand())
    {
        command.CommandText = "SELECT COUNT(*) FROM Contacts";
        var result = command.ExecuteScalar().ToString();
    }
}

اما در مدل EAV، خواص داینامیک را به درون جدول دومی منتقل خواهیم کرد:

create table EmployeeEav
(
   Id int auto_increment
   primary key
);

create table EmployeeAttributes
(
  Id int auto_increment
  primary key,
  EmployeeId int not null,
  AttributeName text null,
  AttributeValue text null,
  constraint FK_EmployeeAttributes_EmployeeEav_EmployeeId
  foreign key (EmployeeId) references EmployeeEav (Id)
  on delete cascade
);

create index IX_EmployeeAttributes_EmployeeId
on EmployeeAttributes (EmployeeId);

تعریف جداول فوق نیز در Entity Framework به اینصورت خواهند بود:

public class EmployeeEav
{
    public int Id { get; set; }
    public virtual ICollection<EmployeeAttribute> Attributes { get; set; }
}

public class EmployeeAttribute
{
    public int Id { get; set; }
    public virtual EmployeeEav Employee { get; set; }
    public int EmployeeId { get; set; }
    public string AttributeName { get; set; }
    public string AttributeValue { get; set; }
}

public class MyDbContext : DbContext
{

    public DbSet<EmployeeEav> EmployeeEav { get; set; }
    public DbSet<EmployeeAttribute> EmployeeAttributes { get; set; }

    protected override void OnConfiguring(DbContextOptionsBuilder options)
    {
        options.UseMySQL(_configuration.GetConnectionString("DataConnection"));
    }
}

SELECT `e`.`Id`, `e`.`DateOfBirth`, `e`.`FirstName`, `e`.`LastName`
FROM `Employees` AS `e`
WHERE `e`.`DateOfBirth` > @__endDate_0

 Start > Control Panel > System > Advanced
Environment Variables -> System Variables -> find PATH

 C:\Program Files\Adobe\Adobe PDF iFilter 9 for 64-bit platforms\bin\

 exec sys.sp_fulltext_service 'load_os_resources', 1;
EXEC sp_fulltext_service 'verify_signature', 0
EXEC sp_fulltext_service 'update_languages'; -- update language list
EXEC sp_fulltext_service 'restart_all_fdhosts'; -- restart daemon
reconfigure with override

 exec sys.sp_help_fulltext_system_components 'filter';

 SELECT document_type, path from sys.fulltext_document_types where document_type = '.pdf'

 CREATE TABLE PdfDocuments
(
id INT IDENTITY(1,1) NOT NULL,
doctype NCHAR(4) NOT NULL,
doccontent VARBINARY(MAX) NOT NULL,
CONSTRAINT PK_PdfDocuments
PRIMARY KEY CLUSTERED(id)
);

 INSERT INTO PdfDocuments(doctype, doccontent)
SELECT
N'PDF',
bulkcolumn FROM OPENROWSET (BULK 'C:\Users\Vahid\Downloads\1732-DotNetTips.pdf', SINGLE_BLOB) AS doc;

INSERT INTO PdfDocuments(doctype, doccontent)
SELECT
N'PDF',
bulkcolumn FROM OPENROWSET (BULK 'C:\Users\Vahid\Downloads\1733-DotNetTips.pdf', SINGLE_BLOB) AS doc;

 -- Search property list
CREATE SEARCH PROPERTY LIST PdfSearchPropertyList;
GO
ALTER SEARCH PROPERTY LIST PdfSearchPropertyList
ADD 'Author'
WITH (PROPERTY_SET_GUID = 'F29F85E0-4FF9-1068-AB91-08002B27B3D9',
PROPERTY_INT_ID = 4,
PROPERTY_DESCRIPTION = 'Author - author of a given item.');
GO

 CREATE FULLTEXT STOPLIST SQLStopList;
GO
-- Add a stopwords
ALTER FULLTEXT STOPLIST SQLStopList ADD N'به' LANGUAGE 'English';
ALTER FULLTEXT STOPLIST SQLStopList ADD N'با' LANGUAGE 'English';
--.....

 -- Full-text catalog
CREATE FULLTEXT CATALOG PdfDocumentsFtCatalog;
GO

-- Full-text index
CREATE FULLTEXT INDEX ON PdfDocuments
(
  [doccontent] TYPE COLUMN [doctype]
  Language 1033
  STATISTICAL_SEMANTICS
)
KEY INDEX PK_PdfDocuments
ON PdfDocumentsFtCatalog
WITH STOPLIST = SQLStopList,
  SEARCH PROPERTY LIST = PdfSearchPropertyList,
  CHANGE_TRACKING AUTO;
GO

 SELECT
 I.document_id,
 I.display_term,
 I.occurrence_count
FROM sys.dm_fts_index_keywords_by_document(DB_ID(DB_NAME()), OBJECT_ID(N'dbo.PdfDocuments')) AS I
INNER JOIN dbo.PdfDocuments D
ON D.id = I.document_id;

 SELECT *
FROM PdfDocuments
WHERE CONTAINS(doccontent, N'است')

SELECT
 I.document_id,
 I.display_term,
 I.property_id
FROM sys.dm_fts_index_keywords_by_property(DB_ID(DB_NAME()), OBJECT_ID(N'dbo.PdfDocuments')) AS I
INNER JOIN dbo.PdfDocuments D
ON D.id = I.document_id;

//search for person with ID = 1 in year 92.
            using (var context = new TestContextNew())
            {
                // در اینجا هم باید بنحوی بتوان با مشخص کردن سال مورد نظر اطلاعات از جدول مربوطه لود شود
                //Info_92 مثلا برای سال 92 از جدول
                var result = from h in context.Info_News where h.ID == 1 select h;
                
                dataGridView1.DataSource = result.ToList();
            }

USE [WideWorldImporters];
GO

SELECT
    [s].[StateProvinceName],
    [s].[SalesTerritory],
    [s].[LatestRecordedPopulation],
    [s].[StateProvinceCode]
FROM [Application].[Countries] [c]
    JOIN [Application].[StateProvinces] [s]
    ON [s].[CountryID] = [c].[CountryID]
WHERE [c].[CountryName] = 'United States';
GO

SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
SELECT [cp].[size_in_bytes],
    [cp].[cacheobjtype],
    [cp].[objtype],
    [cp].[plan_handle],
    [dest].[text],
    [plan].[query_plan]
FROM [sys].[dm_exec_cached_plans] [cp]
CROSS APPLY [sys].[dm_exec_sql_text]([cp].[plan_handle]) [dest]
CROSS APPLY [sys].[dm_exec_query_plan]([cp].[plan_handle]) [plan]
WHERE [dest].[text] LIKE '%StateProvinces%'
OPTION(MAXDOP
1,
RECOMPILE);

SELECT
    [o].[OrderID],
    [ol].[OrderLineID],
    [o].[OrderDate],
    [o].[CustomerID],
    [ol].[Quantity],
    [ol].[UnitPrice]
FROM [Sales].[Orders] [o]
    JOIN [Sales].[OrderLines] [ol]
    ON [o].[OrderID] = [ol].[OrderID];
GO

USE [WideWorldImporters];
GO

SELECT
    [CustomerID],
    [TransactionAmount]
FROM [Sales].[CustomerTransactions]
WHERE [CustomerID] = 1056;
GO


SELECT
    [o].[OrderID],
    [ol].[OrderLineID],
    [o].[OrderDate],
    [o].[CustomerID],
    [ol].[Quantity],
    [ol].[UnitPrice]
FROM [Sales].[Orders] [o]
    JOIN [Sales].[OrderLines] [ol]
    ON [o].[OrderID] = [ol].[OrderID];
GO

USE TEMPDB
GO
IF OBJECT_ID('TABLE_GUID')>0
DROP TABLE TABLE_GUID
GO
CREATE TABLE TABLE_GUID
(
ID UNIQUEIDENTIFIER PRIMARY KEY,
FirstName NVARCHAR(1000),
LastName NVARCHAR(1000)
)
GO
IF OBJECT_ID('TABLE_IDENTITY')>0
DROP TABLE TABLE_IDENTITY
GO
CREATE TABLE TABLE_IDENTITY
(
ID INT IDENTITY PRIMARY KEY,
FirstName NVARCHAR(1000),
LastName NVARCHAR(1000)
)
GO
INSERT INTO TABLE_GUID(ID,FirstName,LastName) VALUES (NEWID(),REPLICATE('FARID*',100),REPLICATE('Taheri*',100))
GO 10000

INSERT INTO TABLE_IDENTITY(FirstName,LastName) VALUES (REPLICATE('FARID*',100),REPLICATE('Taheri*',100))
GO 10000

--Fragmentation بررسی وضعیت 
SELECT * FROM sys.dm_db_index_physical_stats(DB_ID(),OBJECT_ID('TABLE_GUID'),NULL,NULL,'DETAILED')
DBCC SHOWCONTIG(TABLE_GUID)
GO
SELECT * FROM sys.dm_db_index_physical_stats(DB_ID(),OBJECT_ID('TABLE_IDENTITY'),NULL,NULL,'DETAILED')
DBCC SHOWCONTIG(TABLE_IDENTITY)
GO

SELECT * FROM tb1 WHERE x1 = '12';

SELECT *
FROM tb1
WHERE x1 = '12';

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using Microsoft.SqlServer.TransactSql.ScriptDom;
 
namespace SqlDomAnalyzer.Core
{
    public static class PrettyPrintTSql
    {
        public static string FormatTSql(string tSql)
        {
            IList<ParseError> errors;
            TSqlScript sqlFragment;
            using (var reader = new StringReader(tSql))
            {
                var parser = new TSql120Parser(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 sql110ScriptGenerator = new Sql120ScriptGenerator(new SqlScriptGeneratorOptions
            {
                SqlVersion = SqlVersion.Sql120
            });
            string finalScript;
            sql110ScriptGenerator.GenerateScript(sqlFragment, out  finalScript);
            return finalScript;
        }
    }
}

SELECT * from tb1 WHERE x1 = '12';
SELECT * from tb1 where x1 = '12';
select * from tb1 WHERE x1 = '12';

SELECT *
FROM tb1
WHERE x1 = '12';