将命令从 SQL Server 转换为 SQLITE

Question

我有这个命令，我想在flutter sqlite上使用它，但它显示错误，因为sqlite中没有DECLARE。

DECLARE @totalTable TABLE 
                    (
                        id INTEGER IDENTITY(1, 1), 
                        account_id INTEGER, 
                        title TEXT, 
                        account_number TEXT, 
                        client_name TEXT, 
                        total REAL
                    )

INSERT INTO @totalTable (account_id, title, account_number) 
    SELECT id, title, account_number 
    FROM Accounts 

DECLARE @counterVariable INTEGER, @startLoop INTEGER 

SET @counterVariable = (SELECT COUNT(id) FROM @totalTable) 
SET @startLoop = 1 

WHILE (@startLoop <= @counterVariable) 
BEGIN 
    UPDATE @totalTable 
    SET total = (SELECT SUM(total) FROM Bills 
                 WHERE account_id = (SELECT account_id 
                                     FROM @totalTable 
                                     WHERE id = @startLoop)), 
        client_name = (SELECT client_name FROM Clients 
                       WHERE id = (SELECT MIN(client_id) 
                                   FROM Bills 
                                   WHERE account_id = (SELECT MIN(account_id) 
                                                       FROM @totalTable 
                                                       WHERE id = @startLoop))) 
    WHERE id = @startLoop 

    SET @startLoop = @startLoop + 1 
END 

SELECT account_id, title, client_name, account_number, total 
FROM @totalTable

有没有办法重写这个命令以在 sqlite 中使用？

Answer 1

在询问朋友后，我发现这个简短的命令可以得到相同的结果

SELECT        Accounts.id, Accounts.account_number, Clients.client_name, Accounts.title, SUM(Bills.total) AS total
FROM            Accounts INNER JOIN
                         Bills ON Accounts.id = Bills.account_id LEFT OUTER JOIN
                         Clients ON Bills.client_id = Clients.id
GROUP BY Accounts.id, Accounts.account_number, Clients.client_name, Accounts.title