我正在用 .net 核心编写并尝试从数据库 (Postgresql) 启动存储过程。
我收到一条错误消息,提示“输入末尾存在语法错误”。 连接字符串正确(调试时发现)。问题在于 .FromSql() 方法语法。
代码如下:
List<ActivePackageForOpenBillingPeriod> activeUserPackagesForOpenBillingPeriod =null;
using(var conn = new NpgsqlConnection("Host=localhost;Port=xxx;Database=postgres;Username=xxx;Password=xxx;TrustServerCertificate=xxx;ApplicationName=xxx;"))
{
var s = "create function \"GetActiveUserPackagesForOpenBillingPeriod({0})\"";
activeUserPackagesForOpenBillingPeriod = context.ActivePackageForOpenBillingPeriods.FromSql(s,DateTime.Now).ToList();
}
这是我要调用的存储过程
create function "GetActiveUserPackagesForOpenBillingPeriod"(date
timestamp without time zone) returns TABLE("Amount" numeric, "Package"
character varying, "User" text,"Account" int, "AcceptanceActID" int,
"HasChangedPackage" boolean)
language plpgsql
as
$$
DECLARE
BEGIN
RETURN QUERY
SELECT
a."ID" AS "AccountId",
u."ID" AS "UserId",
up."PackageID",
up."TotalAmount",
CASE
WHEN count(DISTINCT tl."PackageID") IN (0,1) THEN false
ELSE true
END AS "HasChangedPackage"
FROM public."Accounts" as a
LEFT JOIN billing."TransactionHeaders" AS th ON th."AccountID" = a."ID"
INNER JOIN security."Users" AS u ON u."AccountID"= a."ID"
INNER JOIN billing."UserPackages" AS up ON up."UserID"=u."ID" AND COALESCE(th."Date", date) BETWEEN up."StartDate" AND COALESCE(up."EndDate", date)
LEFT JOIN billing."TransactionLines" AS tl ON th."Id" = tl."TransactionHeaderID"
WHERE th."AcceptanceActID" IS NULL AND a."StatusID"!=4 AND a."StatusID"!=3 AND up."StatusID"=1
GROUP BY a."ID", u."ID", up."PackageID", up."TotalAmount";
END;
$$;
最佳答案
您正在运行的查询是错误的。它混合了函数创建语句和获取结果的调用。
只有函数名应该被双引号,而不是参数
将查询更改为
var s = "SELECT * FROM \"GetActiveUserPackagesForOpenBillingPeriod\"({0})";
关于c# - “输入末尾的语法错误”- 尝试从数据库启动存储过程时,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56462479/