Jump to content
Sign in to follow this  
Jewtus

Updating sqlite with values from MSSQL db

Recommended Posts

Jewtus

I'm trying to figure out a couple things and I'm not sure what the best way to go is.

First I'm trying to create a sqlite DB with a csv file, but I also need to grab data from a MS SQL server associated with the csv file and associate them. Is there any examples someone can point me to so I can understand what I'm getting into here?

I'd like to create a separate table with info associated with the csv and import them both to a SQLite DB.

Share this post


Link to post
Share on other sites
jchd

You can use the command-line tool (sqlite3.exe) with the .import command to import .csv data into an sqlite table. This may not build the most suitable schema for your application but at least you should have the data there ready for manipulation, or transfer to another table created by you later having the right definition.

Now in your applicative code, you can use ADO support (search ADO in the example forum) to open ths MSSQL source and query it to grab data, which you can then insert/merge or otherwise process as needed.


This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

Share this post


Link to post
Share on other sites
Jewtus

Those are actually what I've been researching but I'm trying to find some examples that I can work from. My expertise is really more in SQL than general scripting. I have been able to figure out the connection string stuff with ADO but I'm not sure how to actually execute the query or save the executed data into an array so I can process it into the sqlite DB (I'm also not sure if it makes sense to save the data or just display it, so I'm weighing my options).

Share this post


Link to post
Share on other sites
jchd

I'll try to work out somehow soon a (very generic) skeleton to help you figure out how to get started. Of course, lacking more specific guidance, it won't follow your actual needs accurately.


This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

Share this post


Link to post
Share on other sites
Jewtus

Much appreciated. Once I understand how it actually functions, I will likely ask more questions and be more specific. I'm not really even sure if its worth loading to a DB (I need to run through about 50k records and use the results, but I don't need to save the results... just query, fill in info, and delete the query data).

Share this post


Link to post
Share on other sites
jchd

For the record, SQLite can handle disk-based or memory-based DBs. Of course a memory DB is way faster to populate, query, update... but it's temporary unless backed up to disk. I'll point you to an easy way to copy an SQLite DB while it's being used to/from disk or memory. 50k rows is a very small DB. This little thing is *very* flexible.

  • Like 1

This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

Share this post


Link to post
Share on other sites
Jewtus

That would be great. I didn't think I needed a DB (I have to find out if anyone actually cares if I keep logs or a DB to track the system). If I can process it via memory (even if it is just partial data that I log), that would be perfect.

I just need to get a functional design setup and I can flush out the details after the fact. 

Share this post


Link to post
Share on other sites
jchd

Exploring ever increasing logs is a pain. A simple DB is certainly more efficient, but up to you.

You have a number of CSV to/from Array examples (use the search) floating around. I posted one with extended format which preserves basic (and even not so basic) datatypes but it uses a somehow precise format.

I run out of time right now. I'll be back to you late in (my) evening.


This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

Share this post


Link to post
Share on other sites
Jewtus

No rush. I'm just exploring my options at this point. I have a feeling I will need to log the input data (into a DB simply for trace-ability) but the data that I'm pulling using ADO doesn't need to be replicated to a different database.

Thanks again! 

PS I've been reading up on ADO on w3school (because they have examples that you can try realtime) but they syntax seems significant enough for me to be completely lost. I'm also running into weird issues with my import statement (works when I execute it via command line but when I use autoit, it doesn't import the data correctly). I'll post another thread if I end up going with the cmd line sqlite (I'll probably need to pack it in with the EXE so I don't have to configure environment variables on deployment.. I was hoping to use Autoit's SQLite connection, but that seems a bit out of reach until I get more versed in Autoit scripting)

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Similar Content

    • dangr82
      By dangr82
       
      I have created this function for a database, but I can not make it work. I always have two error messages: "not an error" ... and the file created, in the script directory, does not contain anything.
      Global $sDBName = "Hen.db" Func DatabaseTable() Local $sConnDB _SQLite_Startup() If @error Then MsgBox($MB_SYSTEMMODAL, "SQLite Error", "SQLite.dll Can't be Loaded!") Exit -1 EndIf $sConnDB = _SQLite_Open($sDBName) If @error Then MsgBox($MB_SYSTEMMODAL, "SQLite Error", "Can't Load Database!") Exit -1 EndIf If Not _SQLite_Exec($sDBName, 'CREATE TABLE Animal ("Name", "Age");') = $SQLITE_OK Then MsgBox($MB_SYSTEMMODAL, "SQLite Error", _SQLite_ErrMsg()) If Not _SQLite_Exec($sDBName, 'INSERT INTO Animale VALUES ("Charlie","5");') = $SQLITE_OK Then MsgBox($MB_SYSTEMMODAL, "SQLite Error", _SQLite_ErrMsg()) _SQLite_Close($sConnDB) _SQLite_Shutdown() EndFunc  
    • Eminence
      By Eminence
      Hello,
      I've been searching on how to select the first row in my database which includes a time column based on the latest start_time date for today's date.
      This is my current code:
      Local $iCurrentDate = _Now() Local $sqlHandle = _dbOpen($sDbPath) Local $aResult, $iRows, $iCols _SQLite_GetTable2d($sqlHandle, "SELECT start_time FROM " & $srawDb & " ORDER BY datetime(start_time) DESC LIMIT 1", $aResult, $iRows, $iCols) _ArrayDisplay($aResult) _dbClose($sDbpath) What it does is it gets the first row entry in the database however it does not select the latest start_time entry in the database, it always select the first row. I've tried changing DESC to ASC to see if that will do it but the issue still remains. Any thoughts on this? Thanks in advance.
       
      *EDIT
      The date format in the database is by MM/DD/YYYY HH:MM:SS.
    • Seminko
      By Seminko
      In my recent project I'm downloading a bunch of data, so I decided to store it in a SQLite database. NOTE: I'm using sqlite3_x64.dll
      Everything is working just fine but I'm struggling with getting the Median value. SQLite has an Average function but not a Median one.
      I googled but all of the provided solutions are way above my pay-grade. After some more searching I found 'extension-functions.c' on the SQLite site where Median is included. After almost an hour of struggling I was able to successfully compile it into a DLL.
      So I downloaded @jchd's SQLiteExtLoad.au3 as seen here:
      But I'm getting these errors:
      "Path\SQLiteExtLoad.au3"(21,40) : warning: $g_hDll_SQLite: possibly used before declaration. Local $RetVal = DllCall($g_hDll_SQLite, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ "Path\SQLiteExtLoad.au3"(21,40) : error: $g_hDll_SQLite: undeclared global variable. Local $RetVal = DllCall($g_hDll_SQLite, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ So I tried, copying the function to my file and changing the DLL variable ($g_hDll_SQLite) directly to the DLL location (C:\...\.. .dll), but now this error fires
      If __SQLite_hChk($hConn, 1) Then Return SetError(@error, 0, $SQLITE_MISUSE) To be honest, I don't know what to use as the $hConn - handle of connection.
      I would appreciate any help, be it getting the median using SQLite queries or getting the DLL extension loaded using AutoIt.
      Thanks, S.
       
      EDIT: well, I suspect the $hConn variable refers to the return value of the _SQLite_Open function. Well, at least now _SQLite_EnableExtensions doesn't give errors. Now I run into problems with _SQLite_LoadExtension, which gives error -1, and extended 1. Apparently the 1 constant is a generic error where other error do not apply.
      BTW, anybody knows whether I need to compile the extension DLL "into" x64 when I use a x64 SQLite? That might be the problem...
       
      EDIT2: I recompiled the dll and tried it using the SQLite3.exe and it works, so I'm confident the extension DLL has been created correctly

    • AdamUL
      By AdamUL
      I have been testing AutoIt 3.3.14.3 with SQLite, and the Help File examples.  The examples that I have tested are throwing errors or not doing anything.  I have sqlite3.dll, sqlite3_x64.dll, and sqlite3.exe in the directories with the testing script.  I am copying the examples directly from the help file into a test script for testing with no edits.  The _SQLite_GetTable2d example is returning an error ("Library used incorrectly") with each _SQLite_Exec command.  The _SQLite_FastEncode example returns an empty dialog box.  The _SQLite_Exec example only prints out the SQLite version, and nothing else in the SciTE console.  Currently, I'm still searching for what is causing this issue.  I'm on Windows 7 Enterprise 64-bit.  Is anyone else having this issue?  
       
      Adam
       
    • Burgs
      By Burgs
      Greetings,
        I have SQLite setup within my AutoIT program...I'm trying to accomplish what should be a relatively simple task.  I want to be able to return an array of 'table' names for an established database...I believe this might be possible using the '_SQLite_SQLiteExe' command...since it seems to be able to access SQLite schemas...?  The ".tables" command is one of them...if I am not mistaken that command returns a list of all table names in the active database.
        I am attempting the following:
      #include <SQLite.au3> #include <SQLite.dll.au3> Global $hDb, $sIn, $sOut ... $sIn = ".tables" & @CRLF _SQLite_SQLiteExe($hDb, $sIn, $sOut) if @error == 0 Then ;Show Table (using SQLite3.dll) Else if @error == 2 Then ConsoleWrite("ERROR: Sqlite3.exe file not found" & @CRLF) Else ConsoleWrite("ERROR: @error=" & @error & " when calling _SQLite_SQLiteExe" & @CRLF) EndIf ;@error is "2"...OR NOT... EndIf ;@error is "0"...OR NOT... ...   The error being thrown is "ERROR: Sqlite3.exe file not found" ...
        Am I required to have the Sqlite3.exe installed in my directory (i.e. @ScriptsDir)...???  I do not have it in there at present because I did not believe it was necessary with the 'include' calls to "SQLite.au3" and "SQLite.dll.au3"...any advice appreciated.  Thanks in advance. 
      Regards
       
       
       
       
       
       
       
×

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.