Переключать вкладки с помощью Selenium WebDriver с Java

Я просто столкнулся с этой проблемой ... Таблица с 447 732 310 записями в ней. Если бы коллега придумал удивительное решение, потребовалось бы около 24 минут для копирования данных в новую таблицу, около 40 минут для создания индексов.

Вот что мы сделали:

--Get ntiles of idOrders, split up into 100 groups - 1:20 minutes
IF(OBJECT_ID('TEMPDB..#x')) IS NOT NULL
    DROP TABLE #x

SELECT nt, MIN(idOrder) idOrderMin, MAX(idOrder) idOrderMax
INTO #X
FROM (
       SELECT idOrder, NTILE(100) OVER(ORDER BY idOrder) nt
       FROM (
              SELECT DISTINCT idOrder FROM order_raw_fields
       ) X
) Y
GROUP BY nt

-- view results
--SELECT * FROM #x ORDER BY idOrderMin

-- create new table
SELECT TOP 0 * 
INTO ORDER_RAW_FIELDS_Intl 
FROM ORDER_RAW_FIELDS

ALTER TABLE dbo.ORDER_RAW_FIELDS_Intl
    ALTER COLUMN value nvarchar(500)

--Build queries
SELECT 'insert into ORDER_RAW_FIELDS_Intl select * from order_raw_fields  
where idOrder >= ' + CAST(idOrderMIn AS VARCHAR(100)) + ' and idOrder <= ' + CAST(idOrderMax AS varchar) InsertStmt
    INTO #inserts
FROM #X 
ORDER BY idOrderMin

DECLARE insertCursor CURSOR LOCAL FAST_FORWARD FOR
    SELECT InsertStmt
    FROM #inserts

OPEN insertCursor

-- 24:04 minute execution time to match
DECLARE @insertStmt NVARCHAR(125)
FETCH NEXT FROM insertCursor INTO @insertStmt
WHILE @@FETCH_STATUS = 0
BEGIN
    --EXECUTE @insertStmt
    EXECUTE sp_executesql @statement=@insertStmt

    PRINT 'Execution Complete:  ' + @insertStmt

    FETCH NEXT FROM insertCursor INTO @insertStmt   
END

CLOSE insertCursor
DEALLOCATE insertCursor

-- Add indexes
-- 21:37 minutes completion time
ALTER TABLE [dbo].[ORDER_RAW_FIELDS_Intl] ADD  CONSTRAINT [PK_ORDER_RAW_FIELDS_Intl] PRIMARY KEY CLUSTERED 
(
    [idRow] ASC,
    [idOrder] ASC,
    [remoteFieldName] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 92) ON [PRIMARY]
GO

-- 13:45 minutes completion time
CREATE NONCLUSTERED INDEX [IX_idOrder_remoteFieldName2] ON [dbo].[ORDER_RAW_FIELDS_Intl]
(
    [idOrder] ASC,
    [remoteFieldName] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 94) ON [PRIMARY]
GO

-- drop table 
TRUNCATE TABLE [dbo].[ORDER_RAW_FIELDS]
DROP TABLE [dbo].[ORDER_RAW_FIELDS]

-- renamed new table to old tables's name
EXEC sp_rename 'ORDER_RAW_FIELDS_Intl', 'ORDER_RAW_FIELDS';
56
задан Šaikat 16 February 2019 в 10:11
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