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EF Core Db First - filter out tables based on schema name


EF Core Db First - filter out tables based on schema name

By : user2172694
Date : October 23 2020, 08:10 AM
I wish did fix the issue. I have database with multiple schemas. , Use --schema option.
code :


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Create tables and entities with Doctrine2 based on schema declaration

Create tables and entities with Doctrine2 based on schema declaration


By : xxx
Date : March 29 2020, 07:55 AM
Hope that helps I am trying to get Doctrine2 and Zend Framework working together. So far I have been able to autoload Doctrine2 and connect to my database. , Check configurations in cli-config.php. You should use YAML driver:
code :
// $config instanceof Doctrine\ORM\Configuration
$driver = new YamlDriver(array('/path/to/files'));
$config->setMetadataDriverImpl($driver);
LINQPad - How do I filter the list of tables to show only a certain schema?

LINQPad - How do I filter the list of tables to show only a certain schema?


By : Arka Roy Chowdhury
Date : March 29 2020, 07:55 AM
I hope this helps . Unfortunately, no. You could, of course, query the system tables to generate that list yourself, though that doesn't help with the huge list in the explorer tree. There is a similar suggestion on LINQPad's UserVoice site: Search/filter by table or column name. You may consider voting for that.
How to write EF Core Query to filter on multiple tables?

How to write EF Core Query to filter on multiple tables?


By : Anthony Wong
Date : March 29 2020, 07:55 AM
it should still fix some issue So, did some work to re-create your models. The only thing I changed was I added the userId in the Distributor table instead of the opposite. This will be a long answer.. so hang on
Models (omitted User and Address entities because there's nothing special with them)
code :
public abstract class Entity
{
    public int Id { get; set; }
}

public class Distributor : Entity
{   
    public User User { get; set; }

    public int UserId { get; set; }

    public Address Address { get; set; }

    public int AddressId { get; set; }

    public ICollection<DistributorManufacturer> DistributorManufacturers { get; set; }
}

public class Manufacturer : Entity
{
    public Address Address { get; set; }

    public int AddressId { get; set; }

    public ICollection<DistributorManufacturer> DistributorManufacturers { get; set; }
}

public class DistributorManufacturer
{
    public Distributor Distributor { get; set; }

    public int DistributorId { get; set; }

    public Manufacturer Manufacturer { get; set; }

    public int ManufacturerId { get; set; }
}
modelBuilder.Entity<Distributor>()
    .HasOne(p => p.User)
    .WithMany()
    .HasForeignKey(p => p.UserId);

modelBuilder.Entity<Distributor>()
    .HasOne(p => p.Address)
    .WithMany()
    .HasForeignKey(p => p.AddressId);

modelBuilder.Entity<Manufacturer>()
    .HasOne(p => p.Address)
    .WithMany()
    .HasForeignKey(p => p.AddressId);

// many to many mapping
modelBuilder.Entity<DistributorManufacturer>()
    .HasKey(bc => new { bc.DistributorId, bc.ManufacturerId });

modelBuilder.Entity<DistributorManufacturer>()
    .HasOne(bc => bc.Distributor)
    .WithMany(b => b.DistributorManufacturers)
    .HasForeignKey(bc => bc.DistributorId)
    .OnDelete(DeleteBehavior.Restrict);

modelBuilder.Entity<DistributorManufacturer>()
    .HasOne(bc => bc.Manufacturer)
    .WithMany(c => c.DistributorManufacturers)
    .HasForeignKey(bc => bc.ManufacturerId)
    .OnDelete(DeleteBehavior.Restrict);
select * from Users
select * from Distributors
select * from Manufacturers
select * from DistributorManufacturers
// Simulate getting the Id of the logged in User.
var userId = 1;

var query = (from m in _context.Manufacturers
             join dm in _context.DistributorManufacturers on m.Id equals dm.ManufacturerId
             join dist in _context.Distributors on dm.DistributorId equals dist.Id
             join adrs in _context.Addresses on m.AddressId equals adrs.Id
             where dist.UserId == userId
             select new
             {
                 ManufacturerId = m.Id,
                 ManufacturerName = m.Name,
                 DistributorId = dist.Id,
                 DistributorName = dist.Name,
                 Address = adrs
             }).ToList();
[
    {
        "manufacturerId": 1,
        "manufacturerName": "Manufacturer 1",
        "distributorId": 1,
        "distributorName": "Distributor 1",
        "address": {
            "street": "Street 1",
            "city": "New York",
            "state": "NY",
            "id": 1
        }
    },
    {
        "manufacturerId": 2,
        "manufacturerName": "Manufacturer 2",
        "distributorId": 1,
        "distributorName": "Distributor 1",
        "address": {
            "street": "Street 2",
            "city": "New York",
            "state": "NY",
            "id": 2
        }
    }
]
Find count of items from all tables in SQL Server database (filter tables based on column name)

Find count of items from all tables in SQL Server database (filter tables based on column name)


By : 张亮亮
Date : March 29 2020, 07:55 AM
This might help you I have to find the total number of distinct items from a particular column (named Ticker) from all tables in the database. , Here is a much easier approach
code :
use your_databasename --replace with your database name
go
DECLARE @sql         VARCHAR(max)= '',
        @column_name SYSNAME = 'ticker'

SET @sql = Stuff((SELECT ' union all select Table_name = '''+ table_name + ''',[Column] = ''' + column_name
                         + ''',Total_Tickers = count(distinct '+ column_name + ') from '
                         + Quotename(table_catalog) + '.'+ Quotename(table_schema) + '.'+ Quotename(table_name)
                  FROM   information_schema.columns
                  WHERE  column_name = @column_name
                  FOR xml path('')), 1, 11, '') -- stuff is used to remove the first union all
--SELECT @sql

EXEC (@sql) 
Upgrade filter in schema.xml with solr.StandardFilterFactory from existing core on new server

Upgrade filter in schema.xml with solr.StandardFilterFactory from existing core on new server


By : Sugam Anand
Date : March 29 2020, 07:55 AM
With these it helps The StandardFilter hasn't done anything since 3.1, so you can safely remove it:
code :
<tokenizer class="solr.ClassicTokenizerFactory"/>
<filter class="solr.ClassicFilterFactory"/>
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