I am trying to figure out a way to link a MySQL database (running on Linux) to my MSSQL7 database. My ultimate goal is to synchronize inserted/updated/deleted data in the MSSQL7 DB to the MySQL DB.
I have tried a few things and have had a few ideas. They are:
1) Create table triggers in the MSSQL7 DB that will synchronize the data to the MySQL DB. I can't figure out how to run Transact/SQL statements (INSERT, UPDATE, DELETE, etc.) into an ODBC DSN pointing to the MySQL DB. I think this could be done with a linked server (see next item).
2) Add a linked server under Security->Linked Servers in the MSSQL7 Enterprise Manager. I have managed to get the remote MySQL server to link in here. I can even see the table names in the server browser, so that's encouraging! However, I cannot figure out the syntax of the fully-qualified table names in my SELECT statements. I have tried this:
SELECT * from LinuxBox..MyDB.MyTable
-and-
SELECT * from LinuxBox.MyDB.MyDB.MyTable
but I get:
Server: Msg 7312, Level 16, State 1, Line 1
Invalid use of schema and/or catalog for OLE DB provider 'MSDASQL'. A four-part name was supplied, but the provider does not expose the necessary interfaces to use a catalog and/or schema.
This statement:
SELECT * from LinuxBox...MyTable;
gives me:
Server: Msg 7313, Level 16, State 1, Line 1
Invalid schema or catalog specified for provider 'MSDASQL'.
Since I can see the table names in the linked server browser in Enterprise Manager, though, some kind of connection must be active. I just need to figure out how to refer to the remote tables.
A big problem is that when I supply a catalog name while defining the linked server, I get an error message from the Enterprise Manager:
Error 7399: OLE DB provider 'MSDASQL' reported an error. The provider reported an unexpected catastrophic failure.
Therefore, I can't define a catalog with the linked server. I think a catalog is required for the "4-part name" to work in the SELECT statement above.
3) Write an extended stored procedure that uses the ODBC function library to make a connection to the MySQL DSN and have a table trigger call the ESP. Hoping to be able to do something simpler than this!
I hv very little experience handling mssql7. Recently I was assigned a task to maintain a website that uses mssql 7. My system admin has already installed mssql7 server components on a Win2K box and I have only managed to install mssql7 client components on my winXP box.
Whenever I try to connect to the remote server using enterprise manager, I always encounter the same error message complaining that
Quote: A connection could not be established to "Server Name" - Access denied ConnectionOpen (CreateFile())..
Please Verify SQL Server is running and check you SQL Server registration properties (by right clicking on the GAMMA node) and try again.
I have used the client network utility in my winxp box to set up an alias for the server using various network libraries such as TCP/IP and named pipe, but it keeps on returning the same access denial message.
I am running out of brain juice figuring about what's wrong. Could somebody please help me? Thanks in advanced.
I have a SQL Server 7.0 installed on a Compaq PC running on Windows NT. This PC has 64 MB of RAM and it is a Pentium 166. There are 3 Clients connected to it. If there is only one PC running an apllication requesting data from the server, the performance is tolerable, but when there is more than one PC simultenously requesting data from the server, problems araise. Either all of the PCS running the application show zero records on the apllication or one of them show no records. Any mouse click action on the clients will bring the server to almost a halt. Can anyone tell me the reason to these problems?
While installing SQL 7.0 it turned out that the size of my primary patrtition where the Windows NT system files are {C: drive) does not have enough space to take the MSSQL7 system files it wanted to install there. Can the size of this partition be increased (am using FAT file system), can the MSSQL7 system files be installed somewhere else, or should I just do an f disk and start all over again with a new Windows NT installation? (No data on this server yet.) Thanks for your help!
We've experienced a problem with one of our MSSQL7 servers where transactions are not being committed to the database. We've experienced this in Query Analyzer -- where we run several (simple) insert or update statements. Although the script runs successfully, the rows do not appear in the tables. The implicit transaction setting is off for the server. We have also experienced this problem with other tools that run against this server via ODBC. I thought the default setting for MSSQL7 is to auto-commit transactions and I've seen nothing in the error log that indicates that the updates were rolled back. I have compared our server, database and client configuration options to other servers that do not have this problem and have no idea where to look next. Has anyone encountered this problem? Or does anyone have some ideas about where I could look for more information? Thanks!
Has anyone successfully used cherry's oledb provider for MYSQL to create a linked server from MS SQLserver 2005 to a Linux red hat platform running MYSQL.
I can not get it to work.
I've created a UDL which tests fine. it looks like this
[oledb]
; Everything after this line is an OLE DB initstring
I'm trying to bcp logins from 6.5 to 7.0 while maintaining the passwords. I tried doing a bcp in native format, but when I try to bcp in, I get a Dr. Watson. I figured out the issues with syslogins not be updatable on 7.0 because its a view. I'm also aware of the problems associated with the fact that sysxlogins on 7.0 has different column definitions than syslogins on 6.5. I just don't know how to get around these roadblocks. Anyone have any ideas??
I was using MSSQL7 for a long period. I upsized to MSSQL7 from Access some years ago. Without any particular reason when writing code in stored procedures, when I wanred to select some records having a bit column to true I used the syntax bitcolumn=-1 (and not bitcolumn=1). This behavior was used in Access. Everything worked fine. Then I moved to MSSQL2000 and by restoring the MSSQL7 database I had no problem. However, in order to use some features of MSSQL2000 I had to run the sp sp_dbcmptlevel <database>, 80 After that the condition bitcolumn=-1 didn't work. Can anyone verify this behavior, since I have to make dozens of changes in my stored procedures and triggers???
I have a table in mssql7 that has 7000000 record and I want to take100000 records out of it and place them into the new machine withmssql2000. The new machine will also have the same table name, so Iwant to append the 100000 records into that table.Thanks,Royal344--Direct access to this group with http://web2news.comhttp://web2news.com/?comp.databases.ms-sqlserver
Sorry about the huge post, but I think this is the amount ofinformation necessary for someone to help me with a good answer.I'm writing a statistical analysis program in ASP.net and MSSQL7 thatanalyzes data that I've collected from my business's webpage and thehits it's collecting from the various pay-per-click (PPC) engines.I've arrived at problems writing a SQL call to generate certainstatistics.Whenever someone enters our site from one of the PPC search engines, Iwrite out a row to the Hits table. In that table are the followingcolumns:HitID - the Unique ID assigned to each hit that comes into the siteKeyword - the keyword the user searched on when he or she came to thesiteSearchEngine - the PPC engine the user came fromSource - this is pretty much always 'PPC'...if we were to do otherthings, like a newsletter, then this would be different.TimeArrived - the date and time the user arrived at the website. Ihave no idea why I didn't call it "datearrived," since I use "date"and not "time" pretty much everywhere else...(I don't think the rest are important, but they might be, so I'llinclude them for completeness's sake)Referring URL - the URL the user came fromReferring Website - the string between the 'http://' and the first '/'in the URL. I know it's redundant information, but when I designedthis part, I didn't know how to parse it out afterwards, so I justfigured I'd duplicate it.Page Visited - the page the user first arrived atWhen a person comes to the site, I also write out a session cookiecontaining the user's hitID. If the person fills out an enrollmentform (a process which we refer to as "responding"), I attach thatsession ID to the form. The response form (and thus the responsestable) is long; these are the important fields:id - a unique ID for each responsedate - the date and time of the responsestatus - a varchar field containing a status code. I would have madeit a number, but I wanted it to be viewable from looking at the rawdatabase.hitid - the HitID of the user, taken from the session cookie. If thereis no session cookie (for whatever reason), the HidID is written outas 0. While it wouldn't occur often, I can't guarantee that there willnever be more than one response record attached to a singular hitid.Later, some of the responses turn into "confirmations", which meansthat they've actually ordered from us, not just filled out the form.This usually happens about three or four days after the initialresponse. When this happens, the status of the response is changed toa phrase containing the word "confirm" in it (there are a few of them,but they all contain that word).So now that we've collected all this marketing intel., I need toanalyze it.I've written a parser that takes reports from various pay-per-clickcompanies and puts them into a table called PPC. Information in thiscolumn is written out as one record per search engine per keyword perday. The schema is as follows:id - a unique ID for the record in the tabledate - the date to which the information in the record appliessearchengine - the PPC engine to which the information applieskeyword - the keyword to which the information appliesclicks - the number of clicks on the applicable keyword on theapplicable search engine on the applicable day.impressions - same as clicks, but for impressionscpc - the cost per click on the applicable keyword ...avgpos - (I don't always have a value for this field) The averageposition that the keyword was shown in for the applicable keyword ...With this data in, the last step is actually analyzing the threetables for useful statistics on the various keywords, search engines,and time frames. That's the step I've been trying to complete.So what I need is a SQL call that I can run that generates a tablewith the following information:SearchEngineKeywordCost / Click - When calculating the CPC, I can't just take an averageof all the records. I need to calculate the total amount spent per day(clicks * cpc), add that up for every day, and then divide that by thenumber of total clicks. Just doing an average doesn't take intoaccount the fact that some days we'll get more clicks than others.Total Spent - # Clicks * CPC#Responses - counting the number of records in the responses table#Confirms - counting the number of records in the responses table with"confirm" in their statusTotal Spent / #ResponsesTotal Spent / #ConfirmsOh yeah, and I want to be able to order by any four of the fields inany order, narrow my selection to only those keywords that either areor contain a user-specified string, further narrow my selection toonly those records that fit other user-specified criteria for any ofthe columns in the table I'm generating, and select only the top xrecords (where x is a user-specified number). I already haveuser-controls that output the SQL for all of these things, but I needto have places in which I may put that SQL in my call.After many trials and tribulations, I've come up with the followingSQL call. Right now, its output for nearly every row is incorrect, Ithink in a large part due to the fact that the method that I'm usingto generate the number of clicks is yielding incorrect values.If you'd like to help me and you think that modifying the followingcall is easier than writing a whole new one, be my guest; if you'dprefer to write a new one, I'm game for that, too. I'm just concernedwith its working right now, and any help you can give me is greatlyappreciated.Anyway, here's the call:/*sp_dboption @dbname='NDP', @optname='Select Into', @optvalue=true;*//*Running the above might be necessary to get the "Select Into"s towork*/Drop table ResponsesPPCDrop table ConfirmPPCDrop table TempPPCSELECT Responses.[ID] as [ID], Responses.Status, PPC.SearchEngine,PPC.KeywordInto ResponsesPPCFROM Responses, PPCWHERE Responses.HitID IN(SELECT Hits.HitIDFROM HitsWHERE Hits.SearchEngine = PPC.SearchEngineAND Hits.Keyword = PPC.Keyword)SELECT ID, Status, SearchEngine, KeywordInto ConfirmPPCFROM ResponsesPPCWHERE Status LIKE "%confirm%"Order by SearchEngine, KeywordSELECT PPC.SearchEngine, PPC.Keyword,SUM(PPC.Clicks), /*I noticed that thiscolumn gives me incorrect values(I don't need it in my final report, but it's useful for debugging).For some keywords, it gives me huge numbers(e.g. 265 clicks on one word that got ~10 clicks /day over five days),and for others, it doesn't give me enough. I think this is a majorpartof what's throwing off the rest of the statistics*/Case SUM(PPC.Clicks) WHEN 0 THEN 0 ELSESUM(PPC.clicks * PPC.cpc) / SUM(PPC.Clicks) END as CPC,SUM(PPC.clicks * PPC.cpc) AS TotalCost,count(ResponsesPPC.ID) As NumResponses,Count(ConfirmPPC.ID) As Confirms,(Case Count(ResponsesPPC.ID) WHEN 0 THEN 0 ELSESUM(PPC.clicks * PPC.cpc) / count(ResponsesPPC.ID) END) ASCostPerResponse,(Case Count(ConfirmPPC.ID) WHEN 0 THEN 0 ELSESUM(PPC.clicks * PPC.cpc) / count(ConfirmPPC.ID) END) AsCostPerConfirmFROM (PPC LEFT JOIN ResponsesPPC ON PPC.SearchEngine =ResponsesPPC.SearchEngineAND PPC.Keyword = ResponsesPPC.Keyword)LEFT JOIN ConfirmPPC ON PPC.SearchEngine = ConfirmPPC.SearchEngineAND PPC.Keyword = ConfirmPPC.KeywordGROUP BY PPC.SearchEngine, PPC.KeywordOrder by PPC.keyword desc/*Drop table ResponsesPPCDrop table ConfirmPPCDrop table TempPPC*//*I don't drop them right now so I can look at them,but normally, one would drop those tables.*/Thanks a lot for your help,-Starwiz
I recently rewrote an old ACCESS 97 application to work with MSSQL 7.
The program works fine until I use a form whiche opens several linked tables at the same time. When closing the Form I get (At unpredictable moments) an ODBC SQL SERVER DRIVER update failure error message.
All rights are set on the tables for Public and even then i keep getting this error at very odd moments. I also had a look in Access at the ODBC refresh rate which is set at 10sec , OLEDB refreshrate 10 sec, and refresh is set at 5sec.
I tried different combinations of timeout settings and even renewing the MDAC to version 2.7. Nothing helps.
Can anyone give me a tip as to look for the possible source of the error and how to fix it? Thanks! Vincent JS
I start to get panic now after 10 hours of different ways of trying to get my old database from my [Server1]* to my [Server2]*. When Im trying with the "SQL Server Management Studio" that included in the MSSQL 2005 but that just tells me it dosn't support any version before MSSQL2000.. I've also tryed with some third part softwares like EMS but no joy!... Its 5 databases from the old server that I MUST get into the new one.. Anyone know howto do this?
[Server1] Windows 2000 MSSQL7
[Server2] Windows Small Business Server 2003 R2. Includes MSSQL 2005 Premium edition.
I have an internal Project Management and Scheduling app that I wrote internally for my company. It was written to use MySQL running on a Debian server, but I am going to move it to SQL Server 2000 and integrate it with our Accounting software. The part I am having trouble with is the user login portion. I previously used this:
PHP Code:
$sql = "SELECT * FROM users WHERE username = "$username" AND user_password = password("$password")";
Apparently the password() function is not available when accessing SQL Server via ODBC. Is there an equivalent function I could use isntead so the passwords arent plaintext in the database? I only have 15 people using the system so a blank pwd reset wouldn't be too much trouble.
Is there anyway to tell when records have been replicated to another device from SQL Server? I realize I can see it by looking in the distribution table, but I want to do it from a different database, so I cant access the distribution database from that DB. Any help would be much appreciated. Thanks, Nick
In our environment (SQL 2005) we have a database that uses Transactional Replication to sync data between two SQL 2005 servers. There is a web app that reads/writes data to the publisher server and the other server (that gets the replicated data) is used by some other internal applications.
At times, there is a need to delete some data from the publisher server...but this can ONLY happen once the data has been successfully replicated to the second server. Is there any way to determine if a row has been replicated successfully?
I have an application that uses web-based merge replication. My publisher is SQL 2005 and my subscriber is SQL 2005 Express. I control the replication with RMO code. If I make changes to the data in both databases using SQL Server Management Studio Express, my RMO code correctly syncs the two databases. However if I make changes to the data at the subscription through my application, these changes are not picked up by the replication process, even though the changes are present if you check the tables through Management Studio. What would cause these changes to not be recognized? Any ideas would be appreciated.
Hi, We have to move two of our servers in US hosting SQL Server 2000 database to different location. These servers are clustered using MSCS and uses SAN to store database data. The database on this cluster hosts publisher and distributor. The other two sites in Europe host updateable subscribers. We are using transactional replication. The downtime will be around 24 hours during which servers will be physically moved from one location to other. During this time we will keep the two subscribers running and let the changes queued on subscribers. I have listed following steps based on my limited knowledge of SQL Server. Could somebody please advise if this approach is valid and if I have missed any steps?
1. Make sure no users are accessing database 2. Backup database (In case of emergency need) 3. Stop snapshot, Log Reader, Queue Reader and Distributor Agents 4. Stop SQL Server Service and SQL Agent 5. Take OS backup 5. Shutdown the server 6. Ship the servers and OS backup to new location 7. Setup servers at new location and restore OS backup 8. Start SQL Server Service and SQL Agent 9. Start agents listed in step 3
I got Server A with 30 Databases and I was asked to move 30 databases to Server B… But server A is having 2 databases as Publication and Distribution to two different servers….. and Server A is a subscription for 6 Databases from other servers….
Once I move the databases from Server A to Server B…… what is the best way to get the Replications too…. I mean Server B should have 2 Db’s as Pub & Distr and 6 Db’s as Subscription…
Is there any way I can script it out in Server A and run the same script in Server B with some modification…. so that the Replication work…..??
I have Jobs and Maintenance plans…. Which should also move from Server A to Server B…. I know using DTS...... is there any better way..??
I've got 2 servers and they are using replication to synch the data from one to other. I've got a Full Text Catalog on a table on both servers. - I repopulate the catalogs completely on both servers(now remember that the base tables of those catalogs are under replication and are exactly the same!!) -When I run the exact same qquery against the 2 databases using the Full Text Catalogs I'd just finished rebuilding, I get a different number of results returned in my result set on one then I do on the other... How the heck could this be possible?
Dear All, i've made repliaction stup using the information guide below. all the things are done axactly. now i've inserted a row in the publisher. but i'm not getting the record at the subscriber database. please let me know where i'm missing
Hope to be my last question. I used Transacational with update sub method. When adding new column to replicated table. Do I need to generate new snapshot again? Just want to know how can I apply the new schema to subsciber DB without doing all regenerate snapshot, recreate all tables and bulk copy.. Please help
I hosed myself, please help me somebody.We have a development server (SQL7) where the database is a restored copy ofproduction (where we use replication, but not in the developmentenvironment).While we rebuild the server recently (so we could move off of NT onto 2000),everything looked to be working fine.But I recently, messed up and did a massive update filling the transactionlog of the development server. Now I can't update data in development.I tried to do my usual:BACKUP LOG LAMS WITH Truncate_onlyonly to get a message:The log was not truncated because records at the beginning of the log arepending replication. Ensure the Log Reader Agent is running or usesp_repldone to mark transactions as distributed.Did a little research into BOL and tried to call the following two procs:exec sp_repldone@xactid = null ,@xact_seqno = null ,@reset = 1exec sp_repltransBoth of which gave me an error of :The database is not published.Which it isn't as we don't run replication in the development environment.I stopped and restarted the SQL Service (as that has cleared issues in thepast), but didn't reboot the server.How can I make the database not think It's replicated (or that its caughtup?).I was thinking, would I be even be able to do another restore of a morerecent copy of Production?Sincerely ...Depressed in Delaware
Hi,I am using Merge Replication for synchronizing a bunch of laptopsrunning MSDE with a central SQL Server 2000 production server.This database is used by an application that needs to know whichrecords have not yet been replicated, at any givem time.Here's a simple scenario:User A in laptop X starts his copy of the application. He syncs hisMSDE database through the application, to match the current centralservers' data. He then proceeds to add new records through theapplication and, after he is done, he synchronizes his database withthe central server, through the application.At any given time, the user might kill the application. He might addsome records today, a few more tomorrow or in a week and should be ableto change and delete records that have not yet been merged into theproduction server.The problem is that SQL Server does not have an easy way to tell whichrecords in the subscription tables have been inserted but not yetreplicated. I have been using the following query:SELECT rowguidFROM [MyTable]INNER JOIN (SELECT rowguid AS rep_idFROM msmerge_contentsWHERE generation = joinchangegen AND generation = (SELECT MAX(generation)FROM msmerge_genhistory )) dtableON rowguid_rep = dtable.rep_idThis query works for most cases but fails to identify the first recordcreated immediatly after a synchronization event.What I would like to know is if there is a correct way of identifyingrecords which are "not-yet-replicated" on a given table that is part ofa merge replication process like the one described above.Thanks in advance.
In Merge Replication SQL Server2005, what is the easiest way of finding out wether a row on the publisher database has ever been replicated to subscribers?
Hi, I have a table published on the SQL2K Merger Replication publisher. But when I add an index to the table it's not replicated to the device. I have checked the snapshot folder and the newly added index is already in the .dri file. Any ideas?
