将数组参数传递给存储过程

#1 楼

#2 楼

CREATE TYPE id_list AS TABLE (
    id int NOT NULL PRIMARY KEY
);
GO

CREATE PROCEDURE [dbo].[tvp_test] (
      @param1           INT
    , @customer_list    id_list READONLY
)
AS
BEGIN
    SELECT @param1 AS param1;

    -- join, filter, do whatever you want with this table 
    -- (other than modify it)
    SELECT *
    FROM @customer_list;
END;
GO

DECLARE @customer_list id_list;

INSERT INTO @customer_list (
    id
)
VALUES (1), (2), (3), (4), (5), (6), (7);

EXECUTE [dbo].[tvp_test]
      @param1 = 5
    , @customer_list = @customer_list
;
GO

DROP PROCEDURE dbo.tvp_test;
DROP TYPE id_list;
GO

#3 楼

#4 楼

SELECT  Number * 8 + 1 AS StartFrom ,
        Number * 8 + 8 AS MaxLen
INTO    dbo.ParsingNumbers
FROM    dbo.Numbers
GO

CREATE FUNCTION dbo.ParseImageIntoBIGINTs ( @BIGINTs IMAGE )
RETURNS TABLE
AS RETURN
    ( SELECT    CAST(SUBSTRING(@BIGINTs, StartFrom, 8) AS BIGINT) Num
      FROM      dbo.ParsingNumbers
      WHERE     MaxLen <= DATALENGTH(@BIGINTs)
    )
GO

static byte[] UlongsToBytes(ulong[] ulongs)
{
int ifrom = ulongs.GetLowerBound(0);
int ito   = ulongs.GetUpperBound(0);
int l = (ito - ifrom + 1)*8;
byte[] ret = new byte[l];
int retind = 0;
for(int i=ifrom; i<=ito; i++)
{
ulong v = ulongs[i];
ret[retind++] = (byte) (v >> 0x38);
ret[retind++] = (byte) (v >> 0x30);
ret[retind++] = (byte) (v >> 40);
ret[retind++] = (byte) (v >> 0x20);
ret[retind++] = (byte) (v >> 0x18);
ret[retind++] = (byte) (v >> 0x10);
ret[retind++] = (byte) (v >> 8);
ret[retind++] = (byte) v;
}
return ret;
}

#5 楼

USE [Database]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER FUNCTION [dbo].[splitListToTable] (@list      nvarchar(MAX), @delimiter nchar(1) = N',')
      RETURNS @tbl TABLE (value     varchar(4000)      NOT NULL) AS
/*
http://www.sommarskog.se/arrays-in-sql.html
This guy is apparently THE guy in SQL arrays and lists 

Need an easy non-dynamic way to split a list of strings on input for comparisons

Usage like thus:

DECLARE @sqlParam VARCHAR(MAX)
SET @sqlParam = 'a,b,c'

SELECT * FROM (

select 'a' as col1, '1' as col2 UNION
select 'a' as col1, '2' as col2 UNION
select 'b' as col1, '3' as col2 UNION
select 'b' as col1, '4' as col2 UNION
select 'c' as col1, '5' as col2 UNION
select 'c' as col1, '6' as col2 ) x 
WHERE EXISTS( SELECT value FROM splitListToTable(@sqlParam,',') WHERE x.col1 = value )

*/
BEGIN
   DECLARE @endpos   int,
           @startpos int,
           @textpos  int,
           @chunklen smallint,
           @tmpstr   nvarchar(4000),
           @leftover nvarchar(4000),
           @tmpval   nvarchar(4000)

   SET @textpos = 1
   SET @leftover = ''
   WHILE @textpos <= datalength(@list) / 2
   BEGIN
      SET @chunklen = 4000 - datalength(@leftover) / 2
      SET @tmpstr = @leftover + substring(@list, @textpos, @chunklen)
      SET @textpos = @textpos + @chunklen

      SET @startpos = 0
      SET @endpos = charindex(@delimiter, @tmpstr)

      WHILE @endpos > 0
      BEGIN
         SET @tmpval = ltrim(rtrim(substring(@tmpstr, @startpos + 1,
                                             @endpos - @startpos - 1)))
         INSERT @tbl (value) VALUES(@tmpval)
         SET @startpos = @endpos
         SET @endpos = charindex(@delimiter, @tmpstr, @startpos + 1)
      END

      SET @leftover = right(@tmpstr, datalength(@tmpstr) / 2 - @startpos)
   END

   INSERT @tbl(value) VALUES (ltrim(rtrim(@leftover)))
   RETURN
END

#6 楼

#7 楼

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using a;

namespace a.EventAMI {
    class Db {
        private static SqlCommand SqlCommandFactory(string sprocName, SqlConnection con) { return new SqlCommand { CommandType = CommandType.StoredProcedure, CommandText = sprocName, CommandTimeout = 0, Connection = con }; }

        public static void Update(List<Current> currents) {
            const string CONSTR = @"just a hardwired connection string while I'm debugging";
            SqlConnection con = new SqlConnection( CONSTR );

            SqlCommand cmd = SqlCommandFactory( "sprocname", con );
            cmd.Parameters.Add( "@CurrentTVP", SqlDbType.Structured ).Value = Converter.GetDataTableFromIEnumerable( currents, typeof( Current ) ); //my custom converter class

            try {
                using ( con ) {
                    con.Open();
                    cmd.ExecuteNonQuery();
                }
            } catch ( Exception ex ) {
                ErrHandler.WriteXML( ex );
                throw;
            }
        }
    }
    class Current {
        public string Identifier { get; set; }
        public string OffTime { get; set; }
        public DateTime Off() {
            return Convert.ToDateTime( OffTime );
        }

        private static SqlCommand SqlCommandFactory(string sprocName, SqlConnection con) { return new SqlCommand { CommandType = CommandType.StoredProcedure, CommandText = sprocName, CommandTimeout = 0, Connection = con }; }

        public static List<Current> GetAll() {
            List<Current> l = new List<Current>();

            const string CONSTR = @"just a hardcoded connection string while I'm debugging";
            SqlConnection con = new SqlConnection( CONSTR );

            SqlCommand cmd = SqlCommandFactory( "sprocname", con );

            try {
                using ( con ) {
                    con.Open();
                    using ( SqlDataReader reader = cmd.ExecuteReader() ) {
                        while ( reader.Read() ) {
                            l.Add(
                                new Current {
                                    Identifier = reader[0].ToString(),
                                    OffTime = reader[1].ToString()
                                } );
                        }
                    }

                }
            } catch ( Exception ex ) {
                ErrHandler.WriteXML( ex );
                throw;
            }

            return l;
        }
    }
}

-------------------
the converter class
-------------------
using System;
using System.Collections;
using System.Data;
using System.Reflection;

namespace a {
    public static class Converter {
        public static DataTable GetDataTableFromIEnumerable(IEnumerable aIEnumerable) {
            return GetDataTableFromIEnumerable( aIEnumerable, null );
        }

        public static DataTable GetDataTableFromIEnumerable(IEnumerable aIEnumerable, Type baseType) {
            DataTable returnTable = new DataTable();

            if ( aIEnumerable != null ) {
                //Creates the table structure looping in the in the first element of the list
                object baseObj = null;

                Type objectType;

                if ( baseType == null ) {
                    foreach ( object obj in aIEnumerable ) {
                        baseObj = obj;
                        break;
                    }

                    objectType = baseObj.GetType();
                } else {
                    objectType = baseType;
                }

                PropertyInfo[] properties = objectType.GetProperties();

                DataColumn col;

                foreach ( PropertyInfo property in properties ) {
                    col = new DataColumn { ColumnName = property.Name };
                    if ( property.PropertyType == typeof( DateTime? ) ) {
                        col.DataType = typeof( DateTime );
                    } else if ( property.PropertyType == typeof( Int32? ) ) {
                        col.DataType = typeof( Int32 );
                    } else {
                        col.DataType = property.PropertyType;
                    }
                    returnTable.Columns.Add( col );
                }

                //Adds the rows to the table

                foreach ( object objItem in aIEnumerable ) {
                    DataRow row = returnTable.NewRow();

                    foreach ( PropertyInfo property in properties ) {
                        Object value = property.GetValue( objItem, null );
                        if ( value != null )
                            row[property.Name] = value;
                        else
                            row[property.Name] = "";
                    }

                    returnTable.Rows.Add( row );
                }
            }
            return returnTable;
        }

    }
}

USE [Database]
GO

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER PROC [dbo].[Event_Update]
    @EventCurrentTVP    Event_CurrentTVP    READONLY
AS

/****************************************************************
    author  cbrand
    date    
    descrip I'll ask you to forgive me the anonymization I've made here, but hope this helps
    caller  such and thus application
****************************************************************/

BEGIN TRAN Event_Update

DECLARE @DEBUG INT

SET @DEBUG = 0 /* test using @DEBUG <> 0 */

/*
    Replace the list of outstanding entries that are still currently disconnected with the list from the file
    This means remove all existing entries (faster to truncate and insert than to delete on a join and insert, yes?)
*/
TRUNCATE TABLE [database].[dbo].[Event_Current]

INSERT INTO [database].[dbo].[Event_Current]
           ([Identifier]
            ,[OffTime])
SELECT [Identifier]
      ,[OffTime]
  FROM @EventCurrentTVP

IF (@@ERROR <> 0 OR @DEBUG <> 0) 
BEGIN
ROLLBACK TRAN Event_Update
END
ELSE
BEGIN
COMMIT TRAN Event_Update
END

USE [Database]
GO

CREATE TYPE [dbo].[Event_CurrentTVP] AS TABLE(
    [Identifier] [varchar](20) NULL,
    [OffTime] [datetime] NULL
)
GO

#8 楼

#9 楼

#10 楼

 ALTER FUNCTION [dbo].[UDF_IDListToTable]
 (
    @list          [varchar](MAX),
    @Seperator     CHAR(1)
  )
 RETURNS @tbl TABLE (ID INT)
 WITH 

 EXECUTE AS CALLER
 AS
  BEGIN
    DECLARE @position INT
    DECLARE @NewLine CHAR(2) 
    DECLARE @no INT
    SET @NewLine = CHAR(13) + CHAR(10)

    IF CHARINDEX(@Seperator, @list) = 0
    BEGIN
    INSERT INTO @tbl
    VALUES
      (
        @list
      )
END
ELSE
BEGIN
    SET @position = 1
    SET @list = @list + @Seperator
    WHILE CHARINDEX(@Seperator, @list, @position) <> 0
    BEGIN
        SELECT @no = SUBSTRING(
                   @list,
                   @position,
                   CHARINDEX(@Seperator, @list, @position) - @position
               )

        IF @no <> ''
            INSERT INTO @tbl
            VALUES
              (
                @no
              )

        SET @position = CHARINDEX(@Seperator, @list, @position) + 1
    END
END
RETURN
END

#11 楼

-- Here is the String Array you want to convert to a Table
declare @StringArray varchar(max)
set @StringArray = 'First item,Second item,Third item';

-- Here is the table which is going to contain the rows of each item in the String array
declare @@mytable table (EachItem varchar(50))

-- Just create a select statement appending UNION ALL to each one of the item in the array
set @StringArray = 'select ''' + replace(@StringArray, ',', ''' union all select ''') + ''''
-- Push the data into your table
insert into @@mytable exec (@StringArray)

-- You now have the data in an an array inside a table that you can join to other objects
select * from @@mytable

#12 楼

CREATE TYPE unit_list AS TABLE (
    ItemUnitId int,
    Amount float,
    IsPrimaryUnit bit
);

GO
 CREATE TYPE specification_list AS TABLE (
     ItemSpecificationMasterId int,
    ItemSpecificationMasterValue varchar(255)
);

GO
 declare @units unit_list;
 insert into @units (ItemUnitId, Amount, IsPrimaryUnit) 
  values(12,10.50, false), 120,100.50, false), (1200,500.50, true);

 declare @spec specification_list;
  insert into @spec (ItemSpecificationMasterId,temSpecificationMasterValue) 
   values (12,'test'), (124,'testing value');

 exec sp_add_item "mytests", false, @units, @spec


//Procedure definition
CREATE PROCEDURE sp_add_item
(   
    @Name nvarchar(50),
    @IsProduct bit=false,
    @UnitsArray unit_list READONLY,
    @SpecificationsArray specification_list READONLY
)
AS


BEGIN
    SET NOCOUNT OFF     

    print @Name;
    print @IsProduct;       
    select * from @UnitsArray;
    select * from @SpecificationsArray;
END