T-SQL (SS2K8) :: Comparison Of Times In Same Field
Sep 22, 2015
I'm looking for comparing times in the same field. I have two tables, one table has times of sessions (multiple rows) and the other contains the session ID, start & end times of overall session block and each session length. I am looking for a way to compare from the start of the session until the end all the times sequentially and insert or mark all the sessions that fall between 10 min intervals.
i.e start 10:30 compare to 10:35 (no match), 10:30 to 10:40 (match 10:40 becomes new effective date), 10:40 to 10:45 (no match), 10:40 to 10:50 (match 10:50 new effective date).
I've attempted a couple of self join solutions but simply can't seem to get what I'm after.
CREATE TABLE MyTable (
[id] INT identity NOT NULL,
[sess_id] INT NOT NULL,
[Time] datetime NOT NULL
)
GO
[Code] .....
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Mar 19, 2015
I am trying to use a date comparison in a statement using the year statement as well. Here is what I have:
Case [LastHireDate]
When YEAR([LastHireDate]) < Year(@EndYearlyDate) then '12'
When Month([LastHireDate]) = '1' then '12'
When Month([LastHireDate]) = '2' then '11'
When Month([LastHireDate]) = '3' then '10'
When Month([LastHireDate]) = '4' then '9'
[Code] ....
When I am looking at it [LastHireDate] is showing that red line underneath. The < symbol has a red line and @EndYearlyDate has a red line. I can not seem to get them to clear and am, wondering what I am missing. When I execute the error comes up that it does not like the < sign in there.
Here is the full piece that the Case resides in:
Insert _Test
SELECT
EmpNo,
PersonIdNo,
REPLACE(PersonTaxIdNo,'-',''),
LastName,
FirstName,
[code]......
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Aug 22, 2012
I use the merge statement in a sproc to insert, update and delete records from a staging table to a production table.
In the long sql, here is a part of it,
When Matched and
((Student.SchoolID <> esis.SchoolID
OR
Student.GradeLevel <> esis.GradeLevel
OR
Student.LegalName <> esis.LegalName
OR
Student.WithdrawDate <> esis.WithdrawDate
Student.SPEDFlag <> esis.SPEDFlag
OR
Student.MailingAddress <> esis.MailingAddress)
Then update
Set Student.Schoolid=esis.schoolid,
.....
My question is how about if the column has null values in it.for example
if schoolID is null in production table is null, but in staging table is not null, will the <> return true.or if either side of <> has a null value, will it return true.
I don't want it to omit some records and causing the students records not get updated.If not return true, how to fix this?
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Jun 18, 2014
I was told that the authentication is a process that concerns about security. So the authentication process should be hidden from the client as possible and the client should receive a flag value (1= password is correct and authenticated, -1= incorrect password) and/or user name of the authenticated user. So it should be a SQL operation that should occur in the back end. So the process in detail should be, client form sends user name and hashed /encrypted password to SQL, SQL authenticates and it sends 1/-1 with the user name to the client as the return value and the output.
But when i do research that was not the case, all the threads i have seen on web, either the app is windows or web, developers do two operations:
1. the salt value of the user is searched by user name then return the salt value along with the PasswordHash to the client form / or to the business layer
2. Then use the entered password and the returned salt value to generate a PasswordHash and then compare this passwordHash with the returned passwordHash. if match password is correct if not password is incorrect.
Is this actually how developers write code to authenticate a user in a login event? If so basically the password comparison happens at the client side(either in the form or in the business layer) then wouldn't this be huge security risk by exposing the actual salt and passwordHash to the client?
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Apr 3, 2014
I need to know /observe for a period like 10 days in a row HOW MANY TIMES a specific Stored Proc is executed on the server. How can I do that? is there a way to precisely know a number of such calls via DMVs?
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Jul 23, 2005
I have a datetime variable coming from my ASP.NET application that hasa time portion. I give my users the option to perform an equals,greater than, less than, or between comparison. The trouble comes inthe way the application builds the criteria string. The WHERE clausepassed in is in the format, "(start_dt = '2005/05/16 07:00:00.000')".What I want to do is only compare the date portion of start_dt to thedate portion of the passed in time. Manipulating the start_dt with thebuilt-in SQL functions isn't a problem, but altering the date passed infrom the ASP.NET would be a massive framework change in the app.Is there any way to only compare the date portions of both the SQLfield and the passed in value?Thanks.
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Jun 25, 2014
I need to have a script where it ask the user for a value, the script will search for all records that match the value. Then it will display the numbers of records found and ask the user to enter a different value. The rest of the script will use this new value and increment by 1 n times as the number of records found. I started the script where it will ask for "HANDLE" and display the number of records found with that "HANDLE"
declare @HANDLE as varchar(30)
declare @COUNT as varchar(10)
declare @STARTINV as varchar(20)
set @HANDLE = ?C --This is the parameter to search for records with this value
set @STARTINV = ?C --User will input the starting invoice number
SELECT COUNT as OrderCount FROM SHIPHIST
where HANDLE = @HANDLE
I just can't figure out how to proceed to use the entered invoice # and increment by 1 until it reach the number of records found.
This will be the end results:
Count=5 --results from query
STARTINV=00010 --Value entered by user
Handle,Inv_Num
AAABBB,00010
AAABBB,00011
AAABBB,00012
AAABBB,00013
AAABBB,00014
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Apr 4, 2008
I'm new to SQL Reporting Services but have made some decent headway. I'm stumped by one issue though: How do I repeat a field over and over on a single line?
To elaborate:
I have a table of backup job failures, with a reason and the time it failed.
ID | Reason | Time
1 | No tape | 3/13/3008
2 | Bad drive | 3/14/2008
I'm trying to create a summary, and I want to list the information as follows:
There were 2 failed backup jobs on 3/13/2008, 3/14/2008
My SQL query is as follows:
SELECT Time, COUNT(*) AS NumFailures FROM FailedBackups GROUP BY Time ORDER BY Time ASC
How do I "loop" the Time field on a single line in Reporting Services?
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Apr 2, 2007
Hi,
Let's say I have 1000 registered users in database table and each of them has numeric ranking value.
How can I get the position of each user in comparison to other users ranking value?
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May 12, 2006
Is it possible to count the same field with different criteria. It would be something like this.
car_table
car_id
car_name
car_brand
So you would execute a statement which would count(car_brand) with two different criteria.
I am not sure if this is possible or if there is another way to approach it.
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Oct 1, 2015
In report builder 2.0, I cannot determine how to display the number of times a field has been filled out when a one to many relationship is involved. I get an error every time I use two aggregates.
ID, Symptom_ID
1, 111
2, NULL
3, 222
3, 333
3, 444
4, NULL
5, 666
The result should be 3 out of 5 records... Or even better displayed as a percentage of the total 60%
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May 17, 2015
I have a table that contains file paths as
ServernamefolderAfilenameA
ServernameFolderBFilenameB
and I need a query to return
ServernamefolderA
ServernameFolderB
I tried
SELECT DISTINCT left(Source, charindex('', Source)- 0) AS String
FROM Table
But that removes everything after the first and I need it to return all data before the last
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Jul 15, 2014
Any example on encrypting a SSN Field using TDE?
[URL].....
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Jan 26, 2015
I would like to force a column to be null all the time. I cannot alter the table structure or alter the code that inserts data.
create table dbo.tblCustomer
(
CID int IDENTITY(1,1) not null,
Fnamevarchar(20) not null,
Lnamevarchar(20) not null,
Extravarchar(20) null
[Code] ....
So when this is executed the field Extra is always NULL
INSERT INTO tblCustomer (Fname, Lname, Extra)
VALUES ('bob', 'smith', 'ignore'), ('jane', 'doe', 'empty')
update dbo.tblCustomer set Extra = 'something'
If I've understood After triggers correctly the data will be written and the trigger will fire and overwrite. To avoid 2 writes
I could create an INSTEAD OF trigger
CREATE TRIGGER TR_I_Customer
ON tblCustomer
INSTEAD OF INSERT AS
BEGIN
SET NOCOUNT ON
INSERT INTO tblCustomer
(Fname, Lname, Extra)
SELECT Fname, Lname, NULL
FROM Inserted
END
This will not write the "extra" field twice. However if a new Nullable column were added; it would be v.easy to forget to update the Instead Of trigger. Everything would still work OK but I would be effectively ignoring the new column as well.
What I would like in the instead of trigger is do something like this...
UPDATE INSERTED SET Extra=NULL
Continue with insert without supplying column /value list.
What would be the best way of achieving this, trigger is the only way I could think of?
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May 13, 2014
Large design flaw, I know, but we have a table with a varchar field which contains alpha - numeric values. I need to change just the numerics, which can be in an position on the field:
Sample data of the field:
Rec1: Sally Morgan 201-555-1212
Rec2: 555-4040 John Smith
Rec3: Jane Houstin 201-555-6452 ext1223
Desired result:
Rec1: Sally Morgan 999-999-9999
Rec2: 999-9999 John Smith
Rec3: Jane Houstin 999-999-9999 ext9999
There's a bunch of UDFs out there for selecting just the numerics, but I'm having trouble throwing it into a viable script for repeatable execution.
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Jun 7, 2014
Is there an easy way to send back to my C# program the pascal case of a field type? If you get the parameters or columns for a table or procedure the type is in all lowercase (varchar instead of VarChar). But in C#, it is in an enum (SqlDbType) that has the variables as mixed case so you can't compare them and just pass the type. You need to figure out what the case should be - varchar should be VarChar and bigint should be BigInt.
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Aug 10, 2014
Table A - data example
Idno Entity Flag
1 1 y
2 1 n
3 1 y
4 1 y
Table B - data example
Idno Entity
1 1
2 1
3 1
Table C - data example
Idno Entity
4 1
I want to update the value flag in table A.Update flag from n to y if idno A in table B and and idno A not in table C, so from table A above, first record and 3rd record remain unchange but 2nd record, flag will be changed from n to y. 4th record where idno A not in table b and in Table C so flag will change from y to n. is it possible, or do i need to use the "fetch" method to compare record by record.
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Aug 13, 2015
I added a new field to an existing ETL process which uses SSIS to ingest a CSV file. The new field in the file, Call_Transaction_ID, will not always be populated for every record and so can be NULL or empty for certain records.
Here's the problem:After the file is extracted into a staging table, the Call_Transaction_ID field is showing blank or empty when it has no ID for that particular record. The problem is when I try to then ETL this data into a fact table - I'm trying to set the Call_Transaction_ID field to -1 if it is NULL or empty, however SQL Server doesn't see the field as empty even though there is no value in the field so -1 will NEVER return.
Using a WHERE DATALENGTH(Call_Transaction_ID) = 0 returns 0 records, again because SQL Server doesn't see the field as empty or NULL.
What do I do now to get around this? How do I fix it?
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Jun 24, 2014
I have a field Char(10) named bank, and another one Char(15) named namebank.
I need to create a TSQL query, but i need to preserve the white space on my first field named bank and concatenate with the other namebank, this last i dont need white space.
B001 Bank 123
How can accomplish this query.
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Sep 5, 2014
I have a text field that I need to parse out into 4 fields.
30.125x23.625-18.875x25.375
6.1875X19.375-2.4375x15.625
0X0-0x0
26.875X11.375-11.125x22.875
0X0-0x0
0X0-0x0
6.1875X26.875-2.4375x23.125
6.1875X26.875-2.4375x23.125
6.1875X26.875-2.4375x23.125
26.625X14.875-11.125x22.875
26.625X14.875-11.125x22.875
I need to 26.625X14.875-11.125x22.875 should be 26.625 then 14.875 then 11.125 then 22.875
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Feb 2, 2015
I have a table with fields:
Id int
Pay numeric(19,3)
value records:
id pay
1 1.000
2 2.250
3 3.445
4 6.000
I want select of table to form:
id pay
1 1
2 2.25
3 3.445
4 6
if value decimal pay field Greater of zero then
value select= value field
else
delete value decimal and show
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Mar 21, 2014
Trying to get the lowest unused value of CrewID from the below table in a efficient manner. I cant change the table structure as its from a 3rd party and it would break our support agreement.
CREATE TABLE [dbo].[Crews](
[CrewID] [nvarchar](10) NOT NULL,
[CrewName] [nvarchar](200) NOT NULL,
[CompanyID] [nvarchar](10) NOT NULL,
[StartTime] [nvarchar](50) NULL,
[Code] .....
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Mar 26, 2014
I am putting a SELECT statement together where I need to evaluate a results field, to determine how the color indicator will show on a SSRS report. I am running into a problem when I try to filter out any non-numeric values from a varchar field, using a nested CASE statement.
For example, this results field may contain values of '<1', '>=1', '1', '100', '500', '5000', etc. For one type of test, I need a value of 500 or less to be shown as a green indicator in a report, and any value over that would be flagged as a red. Another test might only allow a value of 10 or less before being flagged with a red.
This is why I setup a CASE statement for an IndicatorValue that will pass over to the report to determine the indicator color. Using CASE statements for this is easier to work with, and less taxing on the report server, if done in SQL Server instead of nested SSRS expressions, especially since a variety of tests have different result values that would be flagged as green or red.
I have a separate nested CASE statement that will handle any of the values that contain ">" or "<", so I am using the following to filter those out, and then convert it to an int value, to determine what the indicator value should be. Here is the line of the script that is erring out"
case when (RESULT not like '%<%') or (RESULT not like '%>%') then
CASE WHEN (CONVERT(int, RESULT) between 0 and 500) THEN '2'
ELSE '0'
The message I am getting is: Conversion failed when converting the varchar value '<1' to data type int.
I thought a "not like" statement would not include those values for converting to an int, but that does not seem to be working correctly. I did also try moving the not to show as "not RESULT like", and that did not change the message.
How I can filter out non-numeric values before converting the rest of the varchar field (RESULT) to int, so that it is only converting actual numbers?
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Apr 18, 2014
I have a db1.tPersonJobHist where I have two columns
[WorkflowCoordinatorFlag] [dbo].[shrsFlag] NOT NULL,
[HRBusinessPartnerCode] [dbo].[shrsCode] NULL,
Our developer mistakenly made HRbusinesspartnercode field as nullable. He now wants to change it to Not Nullable.
So there were 4 rows where the values were not null(not sure how). We edited those rows and changed those values to NUll. Now we have no Nulls in that column.
So we brought up the table designer and made the change but got the following error
'tPersonJobHist' table
- Unable to modify table.
Cannot insert the value NULL into column 'HRBusinessPartnerCode', table 'BD6578.dbo.Tmp_tPersonJobHist'; column does not allow nulls. INSERT fails.
The statement has been terminated.
Question is why wouldn't it let me alter the table design. and what is tmp_tpersonjobhist.?
How can I make this column Not-nullable.
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Jul 3, 2014
I have a table with three columns: UniqID, Latitude, and Longitude.
I need to write a query to identify when the latitude has more than 6 decimal places past the decimal. Same with Longitude. Values in these attributes can be a negative number. These fields are FLOAT.
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Feb 4, 2015
We are running sql 2008 R2. We have the JE_DATE field set up as an int. We are trying to subtract 30 days from this date field.
select * from GENERAL_LEDGER
where JE_DATE >= DATEADD(DAY,-30,GETDATE())
In addition to the where clause above we have also tried
where JE_DATE >= DATEADD(dd,-30,GETDATE())
For both we get the following error "Arithmetic overflow error converting expression to data type datetime."
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Mar 27, 2015
I have a datetime field that is just the date and zero for the time element. I also have a varchar field that is of the format 09:25:30
is there an easy way to add these together?
I don't mind if they get converted to integer as it will be used for comparison.
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Apr 10, 2015
How can i find the primary field name and primary table name of a given foreign key.
For example
Table A:
IDa
Column1
Column2
Column3
Table B:
IDb
column1
column2
column3 <---- this is foreign key to table A's IDa
What i want to do is i pass input of tableB, column3 and i get name of Primary tableA and field name IDa. How is it possible to do in tsql ?
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Apr 27, 2015
I have a table with a datetime field (named "lnDateDone") and an integer field (named "PlannedHour"). I want to build a new datetime field with the same value as lnDateDone and replacing the hour part by the PlannedHour field. Example:
lnDateDone = '2014-04-09 13:22:31.544'
HourPlanned = 14
new datetime field = '2014-04-09 14:00:00'
I tried the following:
CAST(SUBSTRING(CAST(lnDateDone AS VARCHAR(25)),1,12) + CAST(PlannedHour AS VARCHAR(2)) + SUBSTRING(CAST(lnDateDone AS VARCHAR(25)), 15, LEN(lnDateHeureFin)) AS SMALLDATETIME) AS DatePrevue
but it won't work when casted in DateTime format, only in varchar, but I want it in datetime as I need to do compute some values using date manipulation functions.
How can I do that?
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Jul 29, 2015
I have a script that is supposed to run thru 2 joined tables and update a field in the 3rd table. The script works but takes approx. 4 hours to run against 250k records.
UPDATE a
SET Con_Mailings = STUFF((SELECT '; ' + c.ListName
FROM [server].[xxxxx_MSCRM].[dbo].ListBase c with (nowait)
INNER JOIN [server].[xxxxxx_MSCRM].[dbo].[ListMemberBase] b with (nowait)
ON b.ListID = c.ListID
WHERE b.EntityID = a.TmpContactID
FOR XML PATH('')),1,1,'')
FROM [xx_Temp].[dbo].[Lyris_CombinedTest] a
I should end up with something like this in the con_mailings field:
'Mailing1, Mailing2, Mailing3'
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Jun 9, 2014
I am having a problem in creating query for this exciting scenario.
Table A
ID ItemQtyCreatedDatetime
W001 CB112014-06-03 20:30:48.000
W002 CB112014-06-04 01:30:48.000
Table B
IDItemQtyCreatedDatetime
A001 CB112014-06-03 19:05:48.000
A002 CB112014-06-03 20:05:48.000
A003 CB112014-06-03 21:05:48.000
A004 CB112014-06-04 01:05:48.000
A005 CB112014-06-04 02:05:48.000
I would like to return the nearest date of Table B in my table like for
ID W001 in table B should return ID A002 CreatedDatetime: 2014-06-03 20:05:48.000
ID W002 in table B should return ID A004 CreatedDatetime: 2014-06-04 01:05:48.000
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Oct 21, 2014
I have several tables a varbinary column in a database. They have names like CSB_BLOB or OBJECT_BLOB. Now I am having intermittent success with getting the data out.
For example this query returns readable text from this data.
0x46726F6D3A20226465616E6E6167726.....etc --data as stored in the column
SELECT CAST(CSB_BLOB AS VARCHAR(MAX)) AS 'Message' FROM OBJECT_BLOB
However this column has the following query results.
0x0001000000FFFFFFFF01000000000000000C....etc. --data as stored in column
--this query returns empty result
SELECT (CSB_BLOB AS VARCHAR(MAX)) AS 'Message' FROM CSB_STATUS_LOG
--this query returns no change???
SELECT CONVERT(VARCHAR(MAX), CONVERT(VARBINARY(MAX), CSB_BLOB, 2), 2) FROM CSB_STATUS_LOG
0001000000FFFFFFFF01000000000000000C....etc
Obviously there is a difference between the two but I am not educated enough to interpret this difference. What do I need to learn / read so I can look at the data in one of these BLOB columns and know how to convert it to something meaningful?
Something like:
1. Try to cast as varchar to see if it is text.
2. Turn into a byte array and see if it is a jpg
3. Turn into a byte array and see if it is a pdf
4. Convert it to hex and then cast as varchar
5. etc....
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May 11, 2015
I have table in which month & year are stored, Like this
Month Year
10 2014
11 2014
12 2014
1 2015
2 2015
3 2015
4 2015
I wanted a query in which it should return the value in a status field which has latest year & month.
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