I am using an SQL Server 2005 database. In it I have an Audit table, and would like to know when a value was changed relative to a period. The period simply has a start date, and any Audit change after it should be displayed up until the next periods start date. If there is no next period start date, I would also like to display the result.
Here is the code to create the table and input data:
CREATE TABLE [dbo].[Period](
[Id] [int] NOT NULL,
[Name] [varchar](50) NOT NULL,
[StartDate] [datetime] NOT NULL
)
INSERT INTO [dbo].[Period] VALUES (1, 'Period 1', '2015-03-01')
INSERT INTO [dbo].[Period] VALUES (2, 'Period 2', '2015-04-01')
INSERT INTO [dbo].[Period] VALUES (3, 'Period 3', '2015-05-01')
CREATE TABLE [dbo].[Audit](
[Id] [int] NOT NULL,
[OldValue] [VARCHAR](50),
[NewValue] [VARCHAR](50),
[DateModified] [DATETIME] NOT NULL,
)
INSERT INTO [dbo].[Audit] VALUES (1, 'Old Value 1', 'New Value 1', '2015-03-27')
INSERT INTO [dbo].[Audit] VALUES (2, 'Old Value 2', 'New Value 2', '2015-04-03')
INSERT INTO [dbo].[Audit] VALUES (3, 'Old Value 3', 'New Value 3', '2015-04-09')
INSERT INTO [dbo].[Audit] VALUES (4, 'Old Value 4', 'New Value 4', '2015-05-12')
http://sqlfiddle.com/#!6/b012c
What I would like is to display the data as follows:
Period 1 | Old Value 1 | New Value 1
Period 2 | Old Value 2 | New Value 2
Period 2 | Old Value 3 | New Value 3
Period 3 | Old Value 4 | New Value 4
Can anyone explain what technique to use?
select
(select top 1 Name from Period where StartDate < DateModified order by StartDate desc),
a.OldValue,
a.NewValue
from Audit a
This should work for what you're after:
Select P.Name, A.OldValue, A.NewValue
From Period P
LEFT JOIN
Period P2 on P2.Id = P.Id + 1
INNER JOIN
Audit A on A.DateModified > P.StartDate and (A.DateModified < P2.StartDate or P2.StartDate is null)
Related
I have this table:
CREATE TABLE [dbo].[testtable]
(
[EmpID] [int] NOT NULL,
[Status] [nvarchar](5) NOT NULL,
[History] [nvarchar](5) NOT NULL,
[EntryDate] DateTime NOT NULL
)
INSERT INTO [dbo].[testtable] ([EmpID], [Status], [History], EntryDate)
VALUES (1, 'N', 'OLD', '2022-03-01 13:00'),
(1, 'C', 'OLD', '2022-03-01 16:00'),
(1, 'C', 'OLD', '2022-04-01 16:00'),
(1, 'T', 'CUR', '2022-05-01 08:00'),
(2, 'N', 'OLD', '2022-04-01 16:00'),
(2, 'R', 'OLD', '2022-05-01 07:00'),
(2, 'F', 'OLD', '2022-06-01 15:00'),
(2, 'S', 'CUR', '2022-07-01 14:00'),
(3, 'N', 'CUR', '2022-03-01 17:00'),
(4, 'N', 'OLD', '2022-05-01 16:00'),
(4, 'F', 'OLD', '2022-06-01 11:00'),
(4, 'G', 'OLD', '2022-07-01 20:00'),
(4, 'G', 'CUR', '2022-08-01 19:00')
In my current output, it seems the beginning first record of a different ID selects the prior status of the previous EMPID.EMPID3 will not be included since they have no change
SELECT
EMPID, FromSt, ToSt, History
FROM
(SELECT
EMPID,
ISNULL(LAG(Status) OVER (ORDER BY EMPID ASC), 'N') AS FromSt,
Status AS ToSt,
History
FROM
[dbo].[testable]
-- WHERE History = 'CUR'
) InnerQuery
WHERE
FromSt <> ToSt
Output:
EMPID FromSt ToSt
---------------------
1 N C
1 C T
2 T N
2 N R
2 R F
2 F S
3 S N
4 N F
4 F G
where each EmpID will go through various status changes. The Oldest per EMPID records will always have a Value of STATUS 'N' and OLD in History and the latest record will always have a History value of 'CUR'
Scenario #1
I would like the output to show only when there is a change between records as below when I select all records
EmpID FromSt ToSt
-------------------
1 N C
1 C T
2 N R
2 R F
2 F S
4 N G
Scenario #2
If I only select 'CUR' I want the output to choose the most current status that is different from the current one and where there is a status change. So again EMPID3 would not be included
EmpID FromSt ToSt
-----------------------
1 C T
2 F S
2 R S
4 F G
There are several problems with the code.
In order to evaluate LAG separately for each EMPID, you need to include the PARTITION BY clause in the LAG function.
https://learn.microsoft.com/en-us/sql/t-sql/functions/lag-transact-sql?view=sql-server-ver16
You need to chose what order to sort the data for LAG to use. There doesn't appear to be anything in your data (a date, perhaps) that would enable you to choose the order. Without this, the results won't be consistent as SQL Server doesn't guarantee the the results are returned in any particular order unless you tell it to. Plus LAG requires an ORDER BY clause.
Thanks to dougp advice. here is the solution
SELECT
EMPID,FromSt,ToSt,History
FROM (SELECT EMPID,
ISNULL(LAG(Status) OVER(PARTITION BY Empid ORDER BY EmpID,EntryDate ),'N')As FromSt,
Status AS ToSt,
History
FROM [dbo].[testtable]
--WHERE History='CUR'
) InnerQuery
WHERE FromSt<>ToSt
I have a question about SQL Server. How to replace only 1st character value when same character have multiple times?
CREATE TABLE [dbo].[productdetails]
(
[pid] [int] NULL,
[productName] [varchar](100) NULL
)
INSERT INTO [dbo].[productdetails] ([pid], [productName])
VALUES (1, N'cinphol')
INSERT INTO [dbo].[productdetails] ([pid], [productName])
VALUES (2, N'apple')
INSERT INTO [dbo].[productdetails] ([pid], [productName])
VALUES (3, N'ppens')
INSERT INTO [dbo].[productdetails] ([pid], [productName])
VALUES (4, N'penrpos')
GO
Based on this data, I want output like this:
pid | productname
----+------------
1 | cinZhol
2 | azple
3 | zpens
4 | zenrpos
My query:
select
pid, replace(productname, 'p', 'z') productname
from
productdetails
This query is not returning the expected results.
Could you please tell me how to achieve this task in SQL Server ?
select
pid,
replace(left(productname, 1), 'p', 'z') +
substring(productname, 2, len(productname)) productname
from
productdetails
I'll first explain the data model then the desired results and what I have tried.
I have vehicles and sales tables:
CREATE TABLE VEHICLE
(
ID INT IDENTITY(1,1) NOT NULL PRIMARY KEY,
BRAND INT NOT NULL,
MODEL VARCHAR(255),
VERSION VARCHAR(255),
UNIQUE(BRAND, MODEL, VERSION),
FOREIGN KEY(BRAND) REFERENCES BRAND(ID)
)
CREATE TABLE SALES
(
ID INT IDENTITY(1,1) NOT NULL PRIMARY KEY,
VEHICLE_ID INT NOT NULL,
DATE DATE NOT NULL,
SALE INT NOT NULL,
CREATED_DATE DATETIME NOT NULL DEFAULT GETDATE(),
FOREIGN KEY (VEHICLE_ID) REFERENCES VEHICLE(ID)
)
This way I can insert several entries for the same vehicle for the same date (when I want to update, I insert a new row)
INSERT INTO SALES (VEHICLE_ID, DATE, SALE, USER_ID)
VALUES (1, '2018-01-01', 2, 3) -- then later i update by inserting a new row
(1, '2018-01-01', 4, 3)
I want to retrieve the last sale inserted for a specific date range (using the DATE), then filter for a specific BRAND, or model or version.
I got it working by doing this
SELECT
S.DATE AS date, SUM(S.SALE_PROJECTION) AS saleProjection
FROM
SALE_PROJECTION S,
(SELECT MAX(ID) AS id
FROM SALE_PROJECTION
WHERE DATE >= CAST(#dateStart AS DATE)
AND DATE <= CAST(#dateEnd AS DATE)
GROUP BY DATE, VEHICLE_ID) S_M,
VEHICLE V
WHERE
1 = 1
AND S.ID = S_M.ID
AND S.VEHICLE_ID = V.ID
AND V.BRAND = 1
AND V.MODEL = 'A6'
AND V.VERSION = '1.0'
GROUP BY S.DATE
ORDER BY DATE
The problem is i want to get the sales for the brand 1 that has the least specificity, meaning:
If i have 3 vehicles:
(1, 'A3', '1.0'),
(1, 'A3', '2.0'),
(1, 'A3', null),
(1, null, null);
if i insert a sale (1, 2018-01-01, 2, 3)
if i insert a sale (2, 2018-01-01, 3, 3) -- the sum for 2018-01-01 would be 5
but then insert a sale for (2, 2018-01-01, 3, 3) -- the sum for 2018-01-01 has to be 3, because it's the last inserted with the least specifity
But the oposite must be true as well
if i insert a sale (3, 2018-01-01, 4, 3)
then insert a sale for (1, 2018-01-01, 1, 3)
then insert a sale for (2, 2018-01-01, 1, 3)
the sum for 2018-01-01 has to be 2, because it's the last inserted
The most general combination of Brand, Model, Version has to "hide" the most specific.
Do i need to change my data model? or this is possible?
I can give more examples if needed.
Thanks in advance
I'm new here in the site and I need a help from you guys. Below is the schema i have which can be run in this site http://sqlfiddle.com/#!3/134c3. The name of my database is vehicle inspections. My question is after this schema.
CREATE TABLE Car
([CarID] varchar(36),
[PlateNo] varchar(6),
[Package] int);
INSERT INTO Car([CarID], [PlateNo], [Package])
VALUES('A57D4151-BD49-4B44-AF10-000F1C298E05', '8112AG', 4);
CREATE TABLE Event
([EventID] int,
[CarID] varchar(36),
[EventTime] smalldatetime,
TicketStatus varchar (10)) ;
INSERT INTO Event([EventID], [CarID], [EventTime], TicketStatus)
VALUES (1, 'A57D4151-BD49-4B44-AF10-000F1C298E05', '20130701', 'Open'),
(2, 'A57D4151-BD49-4B44-AF10-000F1C298E05', '20130702', 'Close') ;
CREATE TABLE EventDefects
([EventDefectsID] int,
[EventID] int,
[Status] varchar(15),
[DefectID] int) ;
INSERT INTO EventDefects ([EventDefectsID], [EventID], [Status], [DefectID])
VALUES (1, 1, 'YES', 1),
(2, 1, 'NO', 2),
(3, 1, 'N/A', 3),
(4, 1, 'N/A', 4),
(5, 2, 'N/A', 1),
(6, 2, 'N/A', 2),
(7, 2, 'N/A', 5),
(8, 2, 'YES', 3),
(9, 2, 'NO', 4) ;
CREATE TABLE Defects
([DefectID] int,
[DefectsName] varchar (36),
[DefectClassID] int) ;
INSERT INTO Defects ([DefectID], [DefectsName], [DefectClassID])
VALUES (1, 'TYRE', 1),
(2, 'BRAKING SYSTEM', 1),
(3, 'OVER SPEEDING', 3),
(4, 'NOT WEARING SEATBELTS', 3),
(5, 'MIRRORS AND WINDSCREEN', 2) ;
CREATE TABLE DefectClass
([Description] varchar (15),
[DefectClassID] int) ;
INSERT INTO DefectClass ([DefectClassID], [Description])
VALUES (1, 'CATEGORY A'),
(2, 'CATEGORY B'),
(3, 'CATEGORY C')
To clarify things. There are two conditions when we issue ticket to the driver.
When vehicle is inspected and found defects on any items under Class A or B (tick 'yes'). The ticket status of that is OPEN. On the other hand if all items on Class A and B are tick 'No' it means no defects are found. The ticket Status is CLOSE. Lastly items under Class C or (traffic violations) are tick N/A. Meaning its a mere vehicle inspection
Condition No. 2 is where vehicle is stopped because of traffic violation (ex. Over Speeding). Vehicle will NOT be inspected, The distinction of this issued ticket are all items under Class A and B are tick or mark 'N/A' while on Class C is tick either 'yes' or 'no'.
Now I have this SQL code below that can be use in the schema above where it will extract vehicles on its MAX(EventTime) with corresponding Ticket Status.
Select
PlateNo, TicketStatus, [EventTime]
FROM
(SELECT
ROW_NUMBER() OVER (PARTITION BY Event.CarID ORDER BY [EventTime] DESC) AS [index],
Event.CarID,
TicketStatus,
[EventTime],
plateNo
FROM
[Event]
Join
[Car] ON Event.CarID = Car.CarID) A
WHERE [index] = 1
Result:
RESULT: PlateNo - 8112AG ; EventTime - July 2, 2013; TicketStatus - Close.
THIS IS NOT THE CORRECT since on this particular date there were no inspection at all only the driver was caught for OVER SPEEDING (see the schema above) and items under Class A and B are marked N/A.
The correct result should be one step back which is July 1, 2013 and Ticket Status is OPEN since it was a clear inspection. Items under category A and B are inspected and found TIRES are defective and BRAKING SYSTEM has NO defects.
Somehow I was thinking code where if Event.TicketStatus = CLOSE it will examine if it is close because it was inspected or close because its a traffic violation.
Try this.
SELECT
PlateNo,
TicketStatus,
MAX(EventTime)
FROM
[Event] E
LEFT OUTER JOIN
[EventDefects] ED ON E.EventID = ED.EventID
LEFT OUTER JOIN
[Defects] D ON ED.DefectID = D.DefectID
LEFT OUTER JOIN
[Car] C ON E.CarID = C.CarID
WHERE ED.Status = 'YES' AND D.DefectClassID <> 3
GROUP BY PlateNo, TicketStatus
I think you can solve this that way:
SELECT C.PlateNo, E.EventID, E.TicketStatus, E.EventTime
FROM Car C
INNER JOIN Event E ON C.CarID = E.CarID
INNER JOIN (
SELECT CarID, MAX(E.EventTime) EventTime FROM Event E
LEFT JOIN EventDefects ED ON E.EventID = ED.EventID
LEFT JOIN Defects D ON ED.DefectID = D.DefectID
WHERE D.DefectClassID IN (1,2) AND ED.Status <> 'N/A'
GROUP BY CarID
) T ON E.CarID = T.CarID AND E.EventTime = T.EventTime
The subquery is filtering all events in class 1 and 2 (inspection) and where something happened (<> 'N/A'), and it's getting it's maximum date, so it will bring the last occurence of a real inspection of each car. Then, there's the join to bring the state on that date. From what I understood, that's what you want, right?
I want to insert multiple rows in a single table. How can I do this using single insert statement?
Wrap each row of values to be inserted in brackets/parenthesis (value1, value2, value3) and separate the brackets/parenthesis by comma for as many as you wish to insert into the table.
INSERT INTO example
VALUES
(100, 'Name 1', 'Value 1', 'Other 1'),
(101, 'Name 2', 'Value 2', 'Other 2'),
(102, 'Name 3', 'Value 3', 'Other 3'),
(103, 'Name 4', 'Value 4', 'Other 4');
You can use SQL Bulk Insert Statement
BULK INSERT TableName
FROM 'filePath'
WITH
(
FIELDTERMINATOR = '','',
ROWTERMINATOR = ''\n'',
ROWS_PER_BATCH = 10000,
FIRSTROW = 2,
TABLOCK
)
for more reference check
https://www.google.co.in/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=sql%20bulk%20insert
You Can Also Bulk Insert Your data from Code as well
for that Please check below Link:
http://www.codeproject.com/Articles/439843/Handling-BULK-Data-insert-from-CSV-to-SQL-Server
1--> {Simple Insertion when table column sequence is known}
Insert into Table1
values(1,2,...)
2--> {Simple insertion mention column}
Insert into Table1(col2,col4)
values(1,2)
3--> {bulk insertion when num of selected collumns of a table(#table2) are equal to Insertion table(Table1) }
Insert into Table1 {Column sequence}
Select * -- column sequence should be same.
from #table2
4--> {bulk insertion when you want to insert only into desired column of a table(table1)}
Insert into Table1 (Column1,Column2 ....Desired Column from Table1)
Select Column1,Column2..desired column from #table2
You can use UNION All clause to perform multiple insert in a table.
ex:
INSERT INTO dbo.MyTable (ID, Name)
SELECT 123, 'Timmy'
UNION ALL
SELECT 124, 'Jonny'
UNION ALL
SELECT 125, 'Sally'
Check here
For MSSQL, there are two ways:(Consider you have a 'users' table,below both examples are using this table for example)
1) In case, you need to insert different values in users table. Then you can write statement like:
INSERT INTO USERS VALUES
(2, 'Michael', 'Blythe'),
(3, 'Linda', 'Mitchell'),
(4, 'Jillian', 'Carson'),
(5, 'Garrett', 'Vargas');
2) Another case, if you need to insert same value for all rows(for example, 10 rows you need to insert here). Then you can use below sample statement:
INSERT INTO USERS VALUES
(2, 'Michael', 'Blythe')
GO 10
Hope this helps.
You can use the UNION ALL function
http://blog.sqlauthority.com/2007/06/08/sql-server-insert-multiple-records-using-one-insert-statement-use-of-union-all/
We will import the CSV file into the destination table in the simplest form. I placed my sample CSV file on the C: drive and now we will create a table which we will import data from the CSV file.
DROP TABLE IF EXISTS Sales
CREATE TABLE [dbo].[Sales](
[Region] [varchar](50) ,
[Country] [varchar](50) ,
[ItemType] [varchar](50) NULL,
[SalesChannel] [varchar](50) NULL,
[OrderPriority] [varchar](50) NULL,
[OrderDate] datetime,
[OrderID] bigint NULL,
[ShipDate] datetime,
[UnitsSold] float,
[UnitPrice] float,
[UnitCost] float,
[TotalRevenue] float,
[TotalCost] float,
[TotalProfit] float
)
The following BULK INSERT statement imports the CSV file to the Sales table.
BULK INSERT Sales
FROM 'C:\1500000 Sales Records.csv'
WITH (FIRSTROW = 2,
FIELDTERMINATOR = ',',
ROWTERMINATOR='\n' );