SQL server TVP批量插入超过2000个参数

Question

CREATE TABLE EAddressDetails (EAddress varchar(100) NULL))

CREATE TYPE EAddressList AS TABLE (Email VARCHAR(100)))

CREATE PROCEDURE EAddresses_InsertBatch
@EAddressBatch [EAddressList] READONLY
AS
BEGIN
INSERT INTO EAddressDetails (EAddress)
SELECT E.Email FROM @EAddressBatch E
SELECT EAddress
from EAddressDetails
END;

像下面这样执行上面的存储过程

DECLARE @__sp_result int; DECLARE @EAddressBatch EAddressList;
INSERT INTO  @EAddressBatch(EAddress)
SELECT EAddress FROM (VALUES (?),(?)...2000 rows,(?)) s(EAddress);
EXECUTE @__sp_result = EAddresses_InsertBatch @EAddressBatch=@EAddressBatch;
SELECT @__sp_result AS __sp_result;

The incoming request has too many parameters. The server supports a maximum of 2100 parameters. Reduce the number of parameters and resend the request.: S0001

有没有什么有效的方法可以插入超过2100个参数。

Answer 1

将电子邮件地址作为应用代码中的表值参数而不是单个标量参数传递。这样会更有效率，避免插入到表变量中，并避免 2100 参数限制。

使用此方法修改后的 T-SQL 代码将是：

DECLARE @__sp_result int;
EXECUTE @__sp_result = EAddresses_InsertBatch @EAddressBatch=?;
SELECT @__sp_result AS __sp_result;

参见Microsoft SQL Server jdbc driver documentation 获取 java 示例代码。

如果您使用的是 SQL Server 2016 或更高版本，则传递列表的另一种方法是使用 JSON 数组参数。下面的例子。

CREATE PROCEDURE EAddresses_InsertBatch
    @EAddressBatch varchar(MAX)
AS
SET NOCOUNT ON;
INSERT INTO EAddressDetails (EAddress)
    SELECT E.Email
    FROM OPENJSON(@EAddressBatch)
    WITH (
        EMail varchar(100) '$'
    ) AS E;
GO

EXEC EAddresses_InsertBatch '["test1@example.com","test2@example.com","test3@example.com"]';
GO