以编程方式确定存储过程中有多少个参数答案

【问题标题】：Programmatically determine how many parameters in a stored procedure以编程方式确定存储过程中有多少个参数
【发布时间】：2013-06-07 18:21:47
【问题描述】：

SQL Server 的目录视图中是否有任何内容可以为您提供存储过程的列表，例如select name from sys.procedures，还会告诉您每个过程需要多少参数？ Intellisense 将为您提供参数的名称，Visual Studio 也知道。有没有更好的方法来获取存储过程的结果以及每个过程采用的参数的数量（和/或名称）？

我想如果他们解析了 sp_helptext 'sprocName' 就可以做到这一点，但我认为有更好的方法来做到这一点。

再挖一点，想出了

;with x
as
(
SELECT 
    p.name AS Parameter,        
    t.name AS [Type],
    sp.name
FROM sys.procedures sp
JOIN sys.parameters p 
    ON sp.object_id = p.object_id
JOIN sys.types t
    ON p.system_type_id = t.system_type_id
)
select name,Parameter,COUNT(*)
from x
group by name,Parameter

这将完成这项工作。

【问题讨论】：

您是尝试从 .NET 语言（您提到 Visual Studio）还是直接在 TSQL 中执行此操作？
@YuriyGalanter 在 Visual Studio 中怎么样，因为我找到了一个 TSQL 解决方案（你不能只制作上述 TSQL 的存储过程 :)）
有更好的办法，看下面我的回答

标签： .net sql sql-server sql-server-2008 tsql

【解决方案1】：

试试这个：

select * from information_schema.parameters
where specific_name='your_procedure_name'

【讨论】：

【解决方案2】：

您可以像这样获取参数信息：

declare @ProcedureName sysname;
set @ProcedureName = '[dbo].[YourProcedureName]';

select  sp.name, 
        spa.name, 
        spa.is_output 
from    sys.procedures sp
join    sys.parameters spa on
        sp.object_id = spa.object_id
where   sp.object_id = object_id(@ProcedureName);

【讨论】：

只是好奇，你为什么要创建变量而不是只创建 Where 子句 where sp.name='x'
我猜只是习惯，以防您从 DAL 调用等中获取它。使用 object_id 允许您传递 DatabaseId 以及名称解析的架构。
啊，整洁。我得把它归档在我的工具箱里。

【解决方案3】：

如果，正如您所提到的，您为此使用 .NET 语言，您可以使用 SqlCommandBuilder 的DeriveParameters 方法。这样您就不必在后端编写任何内容，而只需使用 .NET 代码即可。

【讨论】：

【解决方案4】：

微软提供了一些有趣的程序。您可以从中选择正确的数据。另见System Stored Procedures

SET QUOTED_IDENTIFIER ON
SET ANSI_NULLS ON
GO

create procedure sys.sp_sproc_columns_90 
(
    @procedure_name         nvarchar(390) = '%',
    @procedure_owner        nvarchar(384) = null,
    @procedure_qualifier    sysname = null,
    @column_name            nvarchar(384) = null,
    @ODBCVer                int = 2,
    @fUsePattern            bit = 1 -- To allow users to explicitly disable all pattern matching.
)
as
    declare @group_num_lower smallint
    declare @group_num_upper smallint
    declare @semi_position int
    declare @full_procedure_name nvarchar(775) -- 390 + 1 + 384
    declare @procedure_id int

    if @procedure_qualifier is not null
    begin
        if db_name() <> @procedure_qualifier
        begin
            if @procedure_qualifier = ''
            begin
                -- in this case, we need to return an empty result set
                -- because the user has requested a database with an empty name
                select @procedure_name = ''
                select @procedure_owner = ''
            end
            else
            begin   -- If qualifier doesn't match current database
                raiserror (15250, -1,-1)
                return
            end
        end
    end

    if @procedure_name is null
    begin   -- If procedure name not supplied, match all
        select @procedure_name = '%'
    end

    -- first we need to extract the procedure group number, if one exists
    select @semi_position = charindex(';',@procedure_name)
    if (@semi_position > 0)
    begin   -- If group number separator (;) found
        select @group_num_lower = convert(int,substring(@procedure_name, @semi_position + 1, 2))
        select @group_num_upper = @group_num_lower
        select @procedure_name = substring(@procedure_name, 1, @semi_position -1)
    end
    else
    begin   -- No group separator, so default to all groups
        select @group_num_lower = 0
        select @group_num_upper = 32767         
    end

    if @procedure_owner is null
    begin   -- If unqualified procedure name
        select @full_procedure_name = quotename(@procedure_name)
    end
    else
    begin   -- Qualified procedure name
        if @procedure_owner = ''
        begin   -- If empty owner name
            select @full_procedure_name = quotename(@procedure_owner)
        end
        else
        begin
            select @full_procedure_name = quotename(@procedure_owner) + '.' + quotename(@procedure_name)
        end
    end

    select @procedure_id = object_id(@full_procedure_name)


    if (@fUsePattern = 1) -- Does the user want it?
    begin
        if ((isnull(charindex('%', @full_procedure_name),0) = 0) and
            (isnull(charindex('[', @procedure_name),0) = 0) and
            (isnull(charindex('[', @procedure_owner),0) = 0) and
            (isnull(charindex('_', @full_procedure_name),0) = 0) and
            (@procedure_id is not null))
        begin
            select @fUsePattern = 0 -- not a single wild char, so go the fast way.
        end
    end

    if @fUsePattern = 0
    begin
        /* -- Debug output, do not remove it.
        print '*************'
        print 'No pattern matching.'
        print isnull(convert(sysname, @procedure_id),   '@procedure_id = null')
        print isnull(@full_procedure_name,              '@full_procedure_name = null')
        print isnull(@procedure_name,                   '@procedure_name = null')
        print isnull(@procedure_owner,                  '@procedure_owner = null')
        print isnull(@procedure_qualifier,              '@procedure_qualifier = null')
        print isnull(@column_name,                      '@column_name = null')
        print isnull(@ODBCVer,                          '@ODBCVer = null')
        print '*************'
        */

        --
        -- FAST!
        --
        select
            PROCEDURE_QUALIFIER         = s_scov.PROCEDURE_QUALIFIER,
            PROCEDURE_OWNER             = s_scov.PROCEDURE_OWNER,
            PROCEDURE_NAME              = convert(nvarchar(134),
                                            s_scov.PROCEDURE_NAME +';'+ ltrim(str(s_scov.procedure_number,5))),
            COLUMN_NAME                 = s_scov.COLUMN_NAME,
            COLUMN_TYPE                 = s_scov.COLUMN_TYPE,
            DATA_TYPE                   = s_scov.DATA_TYPE,
            TYPE_NAME                   = s_scov.TYPE_NAME,
            "PRECISION"                 = s_scov.PRECISION,
            "LENGTH"                    = s_scov.LENGTH,
            SCALE                       = s_scov.SCALE,
            RADIX                       = s_scov.RADIX,
            NULLABLE                    = s_scov.NULLABLE,
            REMARKS                     = s_scov.REMARKS,
            COLUMN_DEF                  = s_scov.COLUMN_DEF,
            SQL_DATA_TYPE               = s_scov.SQL_DATA_TYPE,
            SQL_DATETIME_SUB            = s_scov.SQL_DATETIME_SUB,
            CHAR_OCTET_LENGTH           = s_scov.CHAR_OCTET_LENGTH,
            ORDINAL_POSITION            = s_scov.ORDINAL_POSITION,
            IS_NULLABLE                 = s_scov.IS_NULLABLE,
            SS_UDT_CATALOG_NAME                  = s_scov.SS_UDT_CATALOG_NAME,
            SS_UDT_SCHEMA_NAME                   = s_scov.SS_UDT_SCHEMA_NAME,
            SS_UDT_ASSEMBLY_TYPE_NAME            = s_scov.SS_UDT_ASSEMBLY_TYPE_NAME,
            SS_XML_SCHEMACOLLECTION_CATALOG_NAME = s_scov.SS_XML_SCHEMACOLLECTION_CATALOG_NAME,
            SS_XML_SCHEMACOLLECTION_SCHEMA_NAME  = s_scov.SS_XML_SCHEMACOLLECTION_SCHEMA_NAME,
            SS_XML_SCHEMACOLLECTION_NAME         = s_scov.SS_XML_SCHEMACOLLECTION_NAME,
            SS_DATA_TYPE                = s_scov.SS_DATA_TYPE
        from
            sys.spt_sproc_columns_odbc_view s_scov
        where
            s_scov.object_id = @procedure_id and
            s_scov.odbcver = @ODBCVer and
            (@column_name is null or s_scov.COLUMN_NAME = @column_name) and
            (s_scov.procedure_number between @group_num_lower and @group_num_upper)

        UNION ALL

        select         -- procedure return value & table valued functions
            PROCEDURE_QUALIFIER         = s_scrvov.PROCEDURE_QUALIFIER,
            PROCEDURE_OWNER             = s_scrvov.PROCEDURE_OWNER,
            PROCEDURE_NAME              = convert(nvarchar(134),
                                            s_scrvov.PROCEDURE_NAME +';'+ ltrim(str(s_scrvov.procedure_number,5))),
            COLUMN_NAME                 = s_scrvov.COLUMN_NAME,
            COLUMN_TYPE                 = s_scrvov.COLUMN_TYPE,
            DATA_TYPE                   = s_scrvov.DATA_TYPE,
            TYPE_NAME                   = s_scrvov.TYPE_NAME,
            "PRECISION"                 = s_scrvov.PRECISION,
            "LENGTH"                    = s_scrvov.LENGTH,
            SCALE                       = s_scrvov.SCALE,
            RADIX                       = s_scrvov.RADIX,
            NULLABLE                    = s_scrvov.NULLABLE,
            REMARKS                     = s_scrvov.REMARKS,
            COLUMN_DEF                  = s_scrvov.COLUMN_DEF,
            SQL_DATA_TYPE               = s_scrvov.SQL_DATA_TYPE,
            SQL_DATETIME_SUB            = s_scrvov.SQL_DATETIME_SUB,
            CHAR_OCTET_LENGTH           = s_scrvov.CHAR_OCTET_LENGTH,
            ORDINAL_POSITION            = s_scrvov.ORDINAL_POSITION,
            IS_NULLABLE                 = s_scrvov.IS_NULLABLE,
            SS_UDT_CATALOG_NAME                  = s_scrvov.SS_UDT_CATALOG_NAME,
            SS_UDT_SCHEMA_NAME                   = s_scrvov.SS_UDT_SCHEMA_NAME,
            SS_UDT_ASSEMBLY_TYPE_NAME            = s_scrvov.SS_UDT_ASSEMBLY_TYPE_NAME,
            SS_XML_SCHEMACOLLECTION_CATALOG_NAME = s_scrvov.SS_XML_SCHEMACOLLECTION_CATALOG_NAME,
            SS_XML_SCHEMACOLLECTION_SCHEMA_NAME  = s_scrvov.SS_XML_SCHEMACOLLECTION_SCHEMA_NAME,
            SS_XML_SCHEMACOLLECTION_NAME         = s_scrvov.SS_XML_SCHEMACOLLECTION_NAME,
            SS_DATA_TYPE                = s_scrvov.SS_DATA_TYPE
        from
            sys.spt_sproc_columns_return_values_odbc_view s_scrvov
        where
            s_scrvov.object_id = @procedure_id and
            (
                @column_name is null or 
                @column_name = '@RETURN_VALUE' or
                @column_name = '@TABLE_RETURN_VALUE'
            ) and
            (s_scrvov.procedure_number between @group_num_lower and @group_num_upper)

        order by 1, 2, 3, 18
    end
    else
    begin
        /* -- Debug output, do not remove it.
        print '*************'
        print 'THERE IS pattern matching!'
        print isnull(convert(sysname, @procedure_id),   '@procedure_id = null')
        print isnull(@full_procedure_name,              '@full_procedure_name = null')
        print isnull(@procedure_name,                   '@procedure_name = null')
        print isnull(@procedure_owner,                  '@procedure_owner = null')
        print isnull(@procedure_qualifier,              '@procedure_qualifier = null')
        print isnull(@column_name,                      '@column_name = null')
        print isnull(@ODBCVer,                          '@ODBCVer = null')
        print '*************'
        */

        --
        -- SLOOOOOW!
        --
        if @procedure_owner is null
            select @procedure_owner = '%'

        select
            PROCEDURE_QUALIFIER         = s_scov.PROCEDURE_QUALIFIER,
            PROCEDURE_OWNER             = s_scov.PROCEDURE_OWNER,
            PROCEDURE_NAME              = convert(nvarchar(134),
                                            s_scov.PROCEDURE_NAME +';'+ ltrim(str(s_scov.procedure_number,5))),
            COLUMN_NAME                 = s_scov.COLUMN_NAME,
            COLUMN_TYPE                 = s_scov.COLUMN_TYPE,
            DATA_TYPE                   = s_scov.DATA_TYPE,
            TYPE_NAME                   = s_scov.TYPE_NAME,
            "PRECISION"                 = s_scov.PRECISION,
            "LENGTH"                    = s_scov.LENGTH,
            SCALE                       = s_scov.SCALE,
            RADIX                       = s_scov.RADIX,
            NULLABLE                    = s_scov.NULLABLE,
            REMARKS                     = s_scov.REMARKS,
            COLUMN_DEF                  = s_scov.COLUMN_DEF,
            SQL_DATA_TYPE               = s_scov.SQL_DATA_TYPE,
            SQL_DATETIME_SUB            = s_scov.SQL_DATETIME_SUB,
            CHAR_OCTET_LENGTH           = s_scov.CHAR_OCTET_LENGTH,
            ORDINAL_POSITION            = s_scov.ORDINAL_POSITION,
            IS_NULLABLE                 = s_scov.IS_NULLABLE,
            SS_UDT_CATALOG_NAME                  = s_scov.SS_UDT_CATALOG_NAME,
            SS_UDT_SCHEMA_NAME                   = s_scov.SS_UDT_SCHEMA_NAME,
            SS_UDT_ASSEMBLY_TYPE_NAME            = s_scov.SS_UDT_ASSEMBLY_TYPE_NAME,
            SS_XML_SCHEMACOLLECTION_CATALOG_NAME = s_scov.SS_XML_SCHEMACOLLECTION_CATALOG_NAME,
            SS_XML_SCHEMACOLLECTION_SCHEMA_NAME  = s_scov.SS_XML_SCHEMACOLLECTION_SCHEMA_NAME,
            SS_XML_SCHEMACOLLECTION_NAME         = s_scov.SS_XML_SCHEMACOLLECTION_NAME,
            SS_DATA_TYPE                = s_scov.SS_DATA_TYPE
        from
            sys.spt_sproc_columns_odbc_view s_scov
        where
            s_scov.PROCEDURE_NAME like @procedure_name and
            (@column_name is null or s_scov.COLUMN_NAME like @column_name) and
            s_scov.odbcver = @ODBCVer and
            (s_scov.procedure_number between @group_num_lower and @group_num_upper) and
            schema_name(s_scov.schema_id) like @procedure_owner

        UNION ALL

        select         -- procedure return value & table valued functions
            PROCEDURE_QUALIFIER         = s_scrvov.PROCEDURE_QUALIFIER,
            PROCEDURE_OWNER             = s_scrvov.PROCEDURE_OWNER,
            PROCEDURE_NAME              = convert(nvarchar(134),
                                            s_scrvov.PROCEDURE_NAME +';'+ ltrim(str(s_scrvov.procedure_number,5))),
            COLUMN_NAME                 = s_scrvov.COLUMN_NAME,
            COLUMN_TYPE                 = s_scrvov.COLUMN_TYPE,
            DATA_TYPE                   = s_scrvov.DATA_TYPE,
            TYPE_NAME                   = s_scrvov.TYPE_NAME,
            "PRECISION"                 = s_scrvov.PRECISION,
            "LENGTH"                    = s_scrvov.LENGTH,
            SCALE                       = s_scrvov.SCALE,
            RADIX                       = s_scrvov.RADIX,
            NULLABLE                    = s_scrvov.NULLABLE,
            REMARKS                     = s_scrvov.REMARKS,
            COLUMN_DEF                  = s_scrvov.COLUMN_DEF,
            SQL_DATA_TYPE               = s_scrvov.SQL_DATA_TYPE,
            SQL_DATETIME_SUB            = s_scrvov.SQL_DATETIME_SUB,
            CHAR_OCTET_LENGTH           = s_scrvov.CHAR_OCTET_LENGTH,
            ORDINAL_POSITION            = s_scrvov.ORDINAL_POSITION,
            IS_NULLABLE                 = s_scrvov.IS_NULLABLE,
            SS_UDT_CATALOG_NAME                  = s_scrvov.SS_UDT_CATALOG_NAME,
            SS_UDT_SCHEMA_NAME                   = s_scrvov.SS_UDT_SCHEMA_NAME,
            SS_UDT_ASSEMBLY_TYPE_NAME            = s_scrvov.SS_UDT_ASSEMBLY_TYPE_NAME,
            SS_XML_SCHEMACOLLECTION_CATALOG_NAME = s_scrvov.SS_XML_SCHEMACOLLECTION_CATALOG_NAME,
            SS_XML_SCHEMACOLLECTION_SCHEMA_NAME  = s_scrvov.SS_XML_SCHEMACOLLECTION_SCHEMA_NAME,
            SS_XML_SCHEMACOLLECTION_NAME         = s_scrvov.SS_XML_SCHEMACOLLECTION_NAME,
            SS_DATA_TYPE                = s_scrvov.SS_DATA_TYPE
        from
            sys.spt_sproc_columns_return_values_odbc_view s_scrvov
        where
            s_scrvov.PROCEDURE_NAME like @procedure_name and 
            schema_name(s_scrvov.schema_id) like @procedure_owner and 
            (
                @column_name is null or 
                @column_name = '@RETURN_VALUE' or
                @column_name = '@TABLE_RETURN_VALUE'
            ) and
            (s_scrvov.procedure_number between @group_num_lower and @group_num_upper)

        order by 1, 2, 3, 18
    end

GO

【讨论】：