[英]How to read xml file in stored procedure and insert it in table in sql server
[英]SQL Server : insert stored procedure with dynamic table name
我正在尝试创建一个用于插入新数据的存储过程。 基本上我收到一个关于“声明表变量@tablename”的错误。
我试过:
create procedure [dbo].[spInsertProc](@table_name varchar(max))
as
begin
declare @name nvarchar(128);
declare @description nchar(255);
declare @tablename varchar(max);
--declare @tablename as table;
set @tablename = @table_name;
Insert Into @tablename ([name], [description])
Values (@name, @description)
end
另一个问题是这个存储过程是安全的,因为我没有使用查询字符串,对吗?
准备动态插入语句 ,如下所示:
CREATE procedure [dbo].[spInsertProc](@table_name varchar(max))
as
begin
declare @name varchar(50)='Sandip';
declare @description varchar(50)='SE';
Declare @Query VARCHAR(MAX)
SET @Query='Insert Into '+@table_name+' ([name], [description])
Values (
'''+@name+''',
'''+@description+''')'
EXEC(@Query);
PRINT(@Query);
end
这是使用带有列和参数的插入语句创建存储过程的动态查询
DECLARE @table_name varchar(255) = 'table_name'
DECLARE @v_col varchar(MAX)
DECLARE @v_param varchar(MAX)
DECLARE @SP_param varchar(MAX)
DECLARE @sp_type varchar(10) = 'Insert'
SET @v_col = STUFF(
(SELECT ',' + '['+c.name+']'
FROM sys.tables t JOIN sys.columns c ON t.object_id = c.object_id
WHERE t.name = @table_name
AND c.is_identity = 0
FOR XML PATH ('')), 1, 1, ''
)
SET @v_param = STUFF(
(SELECT ',' + '@'+c.name
FROM sys.tables t JOIN sys.columns c ON t.object_id = c.object_id
WHERE t.name = @table_name
AND c.is_identity = 0
FOR XML PATH ('')), 1, 1, ''
)
SET @SP_param = STUFF(
(SELECT ',' + '@'+c.name+' '+y.name+' '+(CASE WHEN y.name = 'varchar' THEN '('+CAST(c.max_length as varchar)+')' ELSE '' END)
FROM sys.tables t JOIN sys.columns c ON t.object_id = c.object_id
JOIN sys.types y ON y.user_type_id = c.user_type_id
WHERE t.name = @table_name
AND c.is_identity = 0
FOR XML PATH ('')), 1, 1, ''
)
Declare @Query VARCHAR(MAX)
DECLARE @SPQuery VARCHAR(MAX)
SET @SPQuery = 'CREATE PROCEDURE '+@sp_type+''+@table_name+' ('+@SP_param+')
AS BEGIN'
SET @Query='Insert Into '+@table_name+' ('+@v_col+')
Values (
'+@v_param+')
END'
PRINT(@SPQuery);
PRINT(@Query);
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