Checking Records Available In Table
Jan 7, 2008Hai,
Can anybody help me to write a script to see whether the table have records, if records are available then delete all those records?
Thanks.
Regards
Kashif Chotu
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Checking For Records Where One Value Is NOT In The Other?
Aug 27, 2007I am trying to display results in which a value in my first result table is NOT contained in the second result table. Any idea on how to do this?.
SELECT CUSTOMERID, CUSTOMER FROM TABLE1
WHERE CUSTOMERID NOT IN TABLE2
Slow Procedure While Checking Duplicate Records
Jun 21, 2001hello friends
i m stuck up with a problem...actually i dont have much experience in database line....i m new to this line....i have recently joined the job & this problem is like a test of me....if i will be able to give the solution then everything is fine otherwise i will be fired & im not in a condition to leave this job as this is my first job in software development....i have got this chance with lots of difficulty....so please help me if u can...
the problem is....>> i m using a procedure to check the duplicatye records by using string comparison against address of persons..allover the country....
i m using SQL server 7.0
i have a single table(name of table is DATA) which contains 350000 records( i mean address entries) there are about 35 columns but i have to check duplicate records only against address field...for that first of all i remove special characters from the address field.....then i compare first 20 characters for duplicate entries...
for this i m generating another table(name of another table is RESULT)...
how the logic works...initially the data table contains the records but the result table is totally blank....first of all i pick first entry of address from DATA table then...check it with the entry in RESULT table if the entry exists... it compares the address if the record is same then it generates a refference of this address and make an entry....means a refference of that entry....(as far as very first record is concerned there will be no entry in the RESULT table so it will enter the address over there...then it picks up the second record...checks it in the RESULT table...now this record will be compared with the one & only entry in the RESULT table....if the entry is same then the refference will be entered... otherwise it will be entered as second record in the RESULT table....)
now where lies the problem.....initially the procedure is very fast.... but it gradually slows down .....because(when it checks the 10th record for duplication it compares the entry in RESULT table for 9 times only
*** similarly when it checks the 100th record it compares it for 99 times
*** similarly when it checks the 10000th record it compares it for 9999 times
so here lies the problem....
when it checks the 100000th record it gets dammm slow...
what i have get till now is that i have checked.....>>>>>
5000 records in 4 mins....
25000 records in 22 mins....
and
100000 records in 20 hours....(means initially its faster but it gradually slows down)
************************************************** ************************
here i m giving the code for the procedure......
************************************************** *************************
CREATE PROCEDURE pro1 as
SET NOCOUNT ON
Declare @IvgId as numeric(15)
Declare @Address as nvarchar(250)
Declare @AddressClean as nvarchar(250)
Declare @MaxLen as INT
Declare @Add as nvarchar(250)
Declare @Ic as int
Declare @FoundIvgId as numeric(15)
Declare @NewIvgId as numeric(15)
/* here 'N' is for keeping track for some system failures etc */
Declare CurData CURSOR forward_only FOR Select IvgId, Address From Data Where ProcessClean = 'N'
OPEN CurData
FETCH NEXT FROM CurData INTO @IvgId, @Address
WHILE @@FETCH_STATUS = 0
Begin
/*here i m doing string cleaning by removing special characcters */
Select @MaxLen = len(LTRIM(RTRIM(@Address)))
Select @Address = LOWER(@Address)
Select @Ic = 1
Select @AddressClean = ' '
While @Ic <= @MaxLen
/* here @MaxLen is the maximum length of the address field but i have to compare only first 20 characters */
Begin
Select @Add = Substring(@Address, @Ic, 1)
If ascii(@Add) > 47 AND ascii(@Add) <= 64 AND @Add <> ' '
Begin
Select @AddressClean = @AddressClean + @Add
End
If ascii(@Add) > 90 AND @Add <> ' '
Begin
Select @AddressClean = @AddressClean + @Add
End
Select @Ic = @Ic + 1
End
/* now we have removed special characters , for failure checking i m using this 'Y' */
Update Data Set AddressClean = @AddressClean, ProcessClean = 'Y'
Where IvgId = @IvgId
FETCH NEXT FROM CurData INTO @IvgId, @Address
End
PRINT 'Cleaning Done.............................'
Close CurData
Deallocate CurData
/* till now procedure doesnt take too much time & cleans all the 3 lack records in abt 40 mins but next part is giving trouble */
Declare CurData CURSOR FOR Select IvgId, Address, AddressClean From Data Where ProcessDup = 'N'
OPEN CurData
FETCH NEXT FROM CurData INTO @IvgId, @Address, @AddressClean
Select @NewIvgId = 100
WHILE @@FETCH_STATUS = 0
Begin
If EXISTS (Select IvgId From Result Where SubString(RTRIM(LTRIM(AdressClean)),1,20) = SubString(RTRIM(LTRIM(@AddressClean)),1,20))
Begin
Update Result Set DupIvgId = @IvgId Where SubString(RTRIM(LTRIM(AdressClean)),1,20) = SubString(RTRIM(LTRIM(@AddressClean)),1,20)
End
ELSE
Begin
Insert Into Result Values (@NewIvgId, @Address, @AddressClean,0)
Select @NewIvgId = @NewIvgId + 1
End
Update Data set ProcessDup = 'Y' Where IvgId = @IvgId
FETCH NEXT FROM CurData INTO @IvgId, @Address, @AddressClean
End
Close CurData
Deallocate CurData
SET NOCOUNT OFF
Print 'Done................................'
************************************************** **************************
now the procedure is over....now i m writing the SQL script of DATA & RESULT table
************************************************** ************************
CREATE TABLE [dbo].[DATA] (
[IVGID] [numeric](18, 0) NOT NULL ,
[Title] [varchar] (10) NULL ,
[FirstName] [varchar] (50) NULL ,
[MiddleName] [varchar] (10) NULL ,
[LastName] [varchar] (30) NULL ,
[Add1] [varchar] (150) NULL ,
[Add2] [varchar] (50) NULL ,
[Add3] [varchar] (50) NULL ,
[City] [varchar] (30) NULL ,
[State] [varchar] (30) NULL ,
[Country] [varchar] (20) NULL ,
[Pincode] [varchar] (10) NULL ,
[OffPhone] [varchar] (20) NULL ,
[OffFax] [varchar] (20) NULL ,
[ResPhone] [varchar] (20) NULL ,
[ResFax] [varchar] (20) NULL ,
[EMail] [varchar] (50) NULL ,
[Source] [varchar] (20) NULL ,
[MODEL] [varchar] (20) NULL ,
[PNCD] [varchar] (6) NULL ,
[DupKey] [decimal](18, 0) NULL ,
[Duplicate] [int] NULL ,
[HouseHoldID] [varchar] (50) NULL ,
[YearSlab] [varchar] (10) NULL ,
[CleanStatus] [int] NULL ,
[AddStatus] [int] NULL ,
[BatchNo] [varchar] (20) NULL ,
[ModelStatus] [int] NULL ,
[Month] [int] NULL ,
[Year] [int] NULL ,
[SapStatus] [int] NULL ,
[ErrCase] [int] NULL ,
[cmpCity] [varchar] (50) NULL ,
[Product] [varchar] (1) NULL ,
[cmpPinCode] [varchar] (6) NULL ,
[Address] [nvarchar] (250) NULL ,
[AddressClean] [nvarchar] (250) NULL ,
[DupIvgId] [numeric](18, 0) NULL ,
[ProcessClean] [nvarchar] (1) NULL ,
[ProcessDup] [nvarchar] (1) NULL
) ON [PRIMARY]
GO
/****** Object: Table [dbo].[DATA_TEST] Script Date: 15/06/2001 8:36:21 PM ******/
CREATE TABLE [dbo].[DATA_TEST] (
[IVGID] [numeric](18, 0) NOT NULL ,
[Address] [nvarchar] (50) NULL ,
[AddressClean] [nvarchar] (50) NULL ,
[DupIvgId] [numeric](18, 0) NULL ,
[ProcessClean] [nvarchar] (1) NULL ,
[ProcessDup] [nvarchar] (1) NULL
) ON [PRIMARY]
GO
so now i have given the whole description of my problem....i m eagerly waiting for reply......
if anybody can help....i will be very thankful.....
bye for now
Bhupinder singh
Checking Records From Database For Consecutive Year
Apr 23, 2014I am fairly new to SQl and PHP and have a question. I have a database that we enter in when a person buys a season ticket for our baseball team. I want to check and see who bought in 2013 but has not yet bought in 2014. How do I do that?
THID is the ticket holder ID and there is a year. I can do the select * from Passes where Year = '2014' and get everyone who has bought in 2014. How do I compare that with the 2013 and show people who have not bought yet in 2014?
Example entry:
THID PassType Year
15 2 2013
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10 1 2013
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With this - Ticket holder 21 has bought in both years so I wouldn't want his name to come up. I would want to see that ticket holders 15 and 10 haven't yet bought in 2014.
Checking To See If A Records Exists Before Inserting - 3 Million + Rows
Aug 21, 2007I have 1+ CSV files (using a foreach loop) which I'm doing a lot of transform work on and then inserting into a SQL database table.
Each CSV file usually contains about 2 days worth of data (contains date stamps) - somewhere in the region of 60k records per day.
The destination table currently contains 3 million+ rows and will get bigger.
I need to make sure that before inserting into the destination table, the data doesn't already exist.
I've read the following article: http://www.sqlis.com/311.aspx
While the lookup method works, it takes ages and eats up memory as it caches the 3m+ records before running for each CSV. Obviously this will only get worse as the table grows in size.
To make things a little more efficient what I'd like to do, is first derive the dates I'm dealing with in the current file - essentially storing the max(date) and min(date) in variables. Then in the lookup SQL use those vars, to reduce the amount of data that needs to be brought into the transformation to check against before inserting into the destination table.
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Ideally I'd use an aggregate transformation and then use the subsequent output from that either in the lookup query or store the output in vars, but I don't think you can do that and I get the feeling I'm approaching this with the wrong mindset.
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Moving From One Table To Other Table Automatically For Every 3 Months By Checking The Paticular Value Of The Table Field
Mar 29, 2007Hi
I am having a table called as status ,in that table one field is there i.e. currentstatus.
the rows which are having currentstatus as "ticket closed",i want to move those rows into other table called repository which is having same table structure as status table.
I can do programatically.
but is there any way for every 3 months system has to check and do this action means moving to repository table automatically?
Please help me.
Thanks.
How To Automatically Create New Records In A Foreign Table When Inserting Records In A Primary Table.
Sep 13, 2006Ok, I'm really new at this, but I am looking for a way to automatically insert new records into tables. I have one primary table with a primary key id that is automatically generated on insert and 3 other tables that have foreign keys pointing to the primary key. Is there a way to automatically create new records in the foreign tables that will have the new id? Would this be a job for a trigger, stored procedure? I admit I haven't studied up on those yet--I am learning things as I need them. Thanks.
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Aug 11, 2015Table1 contains fields Groupid, UserName,Category, Dimension
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Oct 21, 2015I am trying to write a query that will retrieve all students of a particular class and also any rows in HomeworkLogLine if they exist (but return null if there is no row). I thought this should be a relatively simple LEFT join but I've tried every possible combination of joins but it's not working.
SELECT
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[Code] ...
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Jan 9, 2004I need to check one table while updating another table
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View 7 Replies View RelatedChecking Whether The Table Has A Column With The Specified Name
Sep 18, 2007
Hi,
I have a table as follows
Table
{
Category1,
Category2,
Category3
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I wanted to write a query to check whether the column with the name 'Category3' exists in the table.
Can anyone please let me know how to do this
Best Regards and Thanks
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Checking A Table To See If A Record Already Exists
Sep 19, 2007I've got two tables, one containing a list of company names(approx 10,000 records), the other containing a list of company employees (approx 30,000 records) joined by the CompanyID column.
I have a third table (approx 700 records) containing new employees to be added to the employee table. Each record in this table has the employees details plus the name of their company.
I want to write a query that will check each row in the third table to see if
a) the employee exists in the Employees table
b) the company exists in the Companies table and
c) the employee is listed under the correct company
The query should also handle any combination of the above. So if the company doesn't exist but the employee does, create the company on the companies table and update the appropriate record on the employees table with the new CompanyID etc. etc.
Oh, forgot to mention. The company names in the third table won't be exactly the same as the ones in the Company table so will need to use CharIndex.
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Sep 10, 2007Hi,
I want to use something like select count(*) from table name = 0; to check whether a table is empty,
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Al.
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Sep 23, 2007Greetings!!
I have a MsAccess db containing a table called Employees which i am transforming to Sql server 2005. Everything is working fine. I am using Foreach File enumerator and uploading the files one by one.
However I now plan to validate the schema of MsAccess before uploading it. For eg: My employee table in msaccess is as follows :
Employees
empId int,
empName varchar(60),
empAge int
Since the files come from different vendor, while looping, i want to perform a check if the empid or empAge are not of type long or are not null. If they are of type smallint,i have no problem.
However if they are larger datatypes than the the ones kept in Sql server, then the file needs to be logged in the db with the reason and moved to the error folder. In short, if the datatypes in access tables are smaller than those in Sqlserver, allow it, otherwise reject it.
THe schema of Sqlserver table is same as of that of Employees in msaccess.
How do I do it.
Thanks ,
Lolsron
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Mar 26, 2008I have two tables called A and B and C. Where A and C has the same schema
A contains the following columns and values-------------------------------------------PoId Podate Approved
2 2008-07-07 No 4 2007-05-05 No 5 2005-08-06 Yes 6 2006-07-07 Yes
Table B contains the following columns and values-------------------------------------------------TaskId TableName Fromdate Approved_Status
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Pls provide me with full stored procedure code.
It is very urgent.
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Dec 31, 2003I'm familiar with how to check for the existence of a table before dropping it using the following command:
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[xxx]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[xxx]
How does one check for the existence of a temp table (using # syntax) before dropping it? I've tried various flavors of this command and none work. One flavor is
use tempdb
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[#xxx]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[#xxx]
CREATE TABLE #xxx (
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Nick
Checking Column Name From Multi Database's Table
Aug 18, 2006hi
i have over 200 tables with all same column and data type locate all over the server(20)different database. so i have table call Tname to stored all the link like (databasename.dbo.tablename) so my job will call the Tname table to use cursor to insert records. but the problem is there's one or more table's column name K datatype has been modify by someone else. so is it cause the job fail.
if there a way or SQL statment that i can use Table Tname to see which one is missing column name K? and is there a way i can print out all the datatype and len for all the table column k? please help thanks
Point Of Information - Checking For Existence Of A Table In Another Database...
Feb 22, 2005Hi all,
While cleaning up some code, I ran across the following statement in a stored proc - the purpose of which is to determine if a table exists in the local database: SELECT * FROM dbo.sysobjects where id = object_id(N'[dbo].[XML_PRINTDATE]') and OBJECTPROPERTY(id, N'IsUserTable') = 1of course I removed it from the IF just for testing purposes, but my quandry is this...
Why chose that select (converting table name to object ID) rather than just doing THIS:SELECT * FROM dbo.sysobjects where name = N'XML_PRINTDATE' and OBJECTPROPERTY(id, N'IsUserTable') = 1
I first thought it was to gain access to the "id" column value (and that may yet be the purpose of it), but the second code seems to work just peachy (I assume because the id column is present in the sysobjects table itself).
A follow-on question is this:
When I try to do the same check from another server (i.e.SELECT * FROM APRECEIVE1.DailyProd.dbo.sysobjects where name = N'XML_PRINTDATE' and OBJECTPROPERTY(id, N'IsUserTable') = 1) it of course fails because OBJECTPROPERTY only looks for the id on the local database.
So, do I CARE if it is a user table? (I am reasonably sure it is, of course) and if so, is there a way to check on the remote server for the object type?
Bottom line is I Think I can just simplify things and check for the object name on the remote server, but just don't want to take away any "warm fuzzy feeling" generated by the original stored proc, if such a warm fuzzy is of any benefit (though don't get me started on the relativity of warm fuzzies, I wrote my Thesis on that ;) )
SQL Server 2012 :: Date Range Checking In Table
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Mar 18, 2014I have a situation where deleting old records is blocking updating latest records on highly transactional table and getting timeout errors from application.
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Dec 3, 2014I have a table with about half a million records, each representing a patient in my county.
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I can see what I want to accomplish by using ROW_NUMBER, thus:
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Jul 20, 2005I have been searching many postings and I cant seem to find anyonethat has this answer so I decided to post. I am using SQL(Transact-SQL).If I have 2 tables with columnsacct_num,activity_date,and pay_amt and I want to delete one instanceof a record in table 1 for every instance of that record in table 2how could I do that. For example.Table 1-----------acct activity_date pay_amt123 5/1/2004 50.00123 5/1/2004 50.00123 5/1/2004 50.00123 5/1/2004 50.00123 5/1/2004 50.00Table 2-----------acct activity_date pay_amt123 5/1/2004 50.00123 5/1/2004 50.00I need a delete statement that will find 2 of the 5 records(It doesn'tmatter which 2) and delete them.Leaving table one looking like this.Table 1-----------acct activity_date pay_amt123 5/1/2004 50.00123 5/1/2004 50.00123 5/1/2004 50.00How can I do this??
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Apr 29, 2014I have table 'stores' that has 3 columns (storeid, article, doc), I have a second table 'allstores' that has 3 columns(storeid(always 'ALL'), article, doc). The stores table's storeid column will have a stores id, then will have multiple articles, and docs. The 'allstores' table will have 'all' in the store for every article and doc combination. This table is like the master lookup table for all possible article and doc combinations. The 'stores' table will have the actual article and doc per storeid.
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ALL 0010 001 101 0010 001
ALL 0010 002 101 0010 002
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Feb 13, 2008I have two tables that share a common identity row. I need to build a query where data that exists in one table does not contain data in the other table. For example, table 1 has columns of Owner_ID, LastName, FirstName and table 2 has columns Auto_ID, Owner_ID, AutoMake. Both tables are joined by the Owner_ID column. I need a query that provides all owners from table 1 who do not have an entry in table 2.
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Nov 19, 2015There are 3 tables Property , PropertyExternalReference , PropertyAssesmentValuation which are common for 60 business rule
SELECT
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[PSDCode]
, PV.ValuationEffectiveDate
[EffectiveDate]
, PV.PropertyListAlterationDate
[ListAlterationDate]
[code]....
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Jun 29, 2015I need to delete records from a table (Table1) which has a foreign key column in a related table (Table2).
Table1 columns are: table1Id; Name. Table2 columns include Table2.table1Id which is the foreign key to Table1.
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Jan 21, 2008I'm using an ObjectDataSource in Visual Studio to retrieve records from a SQL Server 2005 database.
I have a very simple dilemma. In a table I have fields FirstName, Surname, Address1, Address2, Address3 etc. None of these are mandatory fields.
It is quite common for the user not to enter data in Address2, Address3, so the values are <null> in the SQL table.
In Visual Studio 2005 I have an aspx form where users can pass search parameters to the ObjectDataSource and the results are returned according to the passed in parameters.
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If, for example, I simply want to search WHERE FirstName LIKE ‘R’, this does not return any results if the value of Address3 is <null>
My query is this: Could someone please show me the best way in Visual Studio 2005 to return records even if one of the Address fields is <null>.
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Mar 17, 2014This seems simple enough but for some reason, my brain isn't working.
I have a lookup table:
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1/1/2014
2/3/2014
3/3/2014
4/3/2014
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union
records with additional column indicating 60 days that fall between the 30 and 60 day
union
records with additional column indicating 90days that fall between the 60 and 90 day mark.
Is there an easy way to do this?