I have currently install sap_netweaver_as_abap_751_sp02_ase_dev_edition and all works fine.
My final goal is to create some tables in SAP (I have SAP ASE installed as DB) and to be able to access them using java (of course with sapidoc3.jar and sapjco3.jar).
Until this moment I manage to create a connection to SAP and I get this output:
executing
Attributes:
DEST: mySAPSystem
OWN_HOST: HS-SW-05
PARTNER_HOST: vhcalnplci
SYSTNR: 00
SYSID: NPL
CLIENT: 001
USER: DEVELOPER
LANGUAGE: E
ISO_LANGUAGE: EN
OWN_CODEPAGE: 4102
OWN_CHARSET: UTF16
OWN_ENCODING: utf-16
OWN_BYTES_PER_CHAR: 2
PARTNER_CODEPAGE: 4103
PARTNER_CHARSET: UTF16
PARTNER_ENCODING: utf-16
PARTNER_BYTES_PER_CHAR: 2
OWN_REL: 721
PARTNER_REL: 751
PARTNER_TYPE: 3
KERNEL_REL: 749
TRACE:
RFC_ROLE: C
OWN_TYPE: E
CPIC_CONVID: 00000000
STFC_CONNECTION finished:
Echo: Hello SAP
Response: SAP R/3 Rel. 751 Sysid: NPL Date: 20180905 Time: 132841
Logon_Data: 001/DEVELOPER/E
I also manage to create a simple table in SAP, but right now I don't understand how can I receive info from that table using java and my jars(is not possible to make any selects or things like this).
From what I found on the internet I have understood that these tables are stored in an IDOC file and I should get somehow this IDOC.
If someone has done this before maybe can give me some clues about how can I get some date from a SAP database.
Thank you.
For now, I can only give a general answer, because I feel you'll have to search detailed guides through other posts, how IDOC works.
An IDOC is neither a table, nor a file. It's a format for exchanging data with SAP (SAP also stores them in IDOC tables, for logging and recovery purposes).
You can either send an IDOC to SAP, or get one from SAP. For instance, one IDOC could contain the data of a purchasing order.
To get data from SAP, you must push it from SAP, by defining:
some data in SAP (purchase order, customer, etc.),
when to send it (immediately or scheduled),
how to send the data via IDOCs to your "java program", by configuring partners and ports (file, HTTP, RFC...)
There are transaction codes like WE20, WE21, BD64.
On a trial system, there is almost no real application except the flight demo database. You may try filling it with the program SAPBC_DATA_GENERATOR, then use the program SAPBC_FILL_FLCUST_IDOC to send IDocs of type FLCUSTOMER_CREATEFROMDATA01.
Related
I have an ASP.NET MVC application which is trying to open below OLE DB connection:
string conString = #"Provider=Advantage OLE DB Provider;Data Source=" + dbfFilePath + ";Extended Properties=dBASE IV;";
using (dBaseConnection = new OleDbConnection(conString))
{
dBaseConnection.Open();
// Some stuff
}
I have installed below package from here.
I am using this provider in order to access a dbf file (specified on the dbfFilePath variable) and then later add some information into it. When I perform the Open command on the above code snippet I get below exception message:
Error 6420: The 'Discovery' process for the Advantage Database Server failed. Unable to connect to the Advantage Database Server. axServerConnect AdsConnect.
Previously I was using VFPOLEDB.4 provider and it was working ok when reading and modifying the dbf file. The problem is that it is only available in 32-bit (there is no version in 64-bit) and now I need it to be in 64-bit so I decided to use Advantage OLE DB provider that is available in 64-bit and as far as I know it does the same as VFPOLEDB.
What am I doing wrong?
UPDATE 2020/11/16:
If I add some parameters to connection string:
string conString = #"Provider=Advantage OLE DB Provider;Data Source=" + dbfFilePath + ";ServerType=ADS_LOCAL_SERVER;TableType=ADS_VFP;Extended Properties=dBASE IV;";
Then when opening connection I get below exception:
Error 7077: The Advantage Data Dictionary cannot be opened. axServerConnect AdsConnect
UPDATE 2020/11/20:
var dbfFilePath =#"C:\MyApp\Temp"; // using c:\MyApp\Temp\myTable.dbf does not work (below open command fails)
string conString = #"Provider=Advantage OLE DB Provider;Data Source=" + dbfFilePath + ";ServerType=ADS_LOCAL_SERVER; TableType=ADS_VFP;";
using (dBaseConnection = new OleDbConnection(conString))
{
dBaseConnection.Open();
OleDbCommand insertCommand = dBaseConnection.CreateCommand();
insertCommand.CommandText = "INSERT INTO [myTable] VALUES (2,100)";
insertCommand.ExecuteNonQuery();
}
Note: [myTable] has the same name that the dbf file within C:\MyApp\Temp.
Now open command works but when performing insertCommand.ExecuteNonQuery() it gets stuck (it does nothing).
UPDATE 2020/11/27:
Ok,I think I have detected what is happening. It works ok when using Advantage OLE DB provider in 32-bit, however, using Advantage OLE DB provider in 64-bit is not working. In both cases I use it on Windows Server 2012 R2 Standard 64-Bit and Advantage OLE DB provider is version 11.10.
I have checked this using LINQPad 5, and it works but when performing
insertCommand.ExecuteNonQuery()
... and before doing the insert to the dbf file below warning modal window appears waiting for you to click on 'Accept' button. Once you click on the button, insert is done in dbf file correctly.
So, I guess that when running my web application (ASP.NET MVC app) in production environment this warning modal windows does not appear but in fact, it is waiting for you to click on the button to proceed inserting data in the dbf file but as this warning window is not visible (it is not shown) I can click on that button and consequently ExecuteNonQuery never ends (it stalls) and it stays waiting for you to click that button indefinitely.
How can I solve this error? can I modify ads.ini in some way in order to avoid this waring message to appear so application can work?
I see you removed the VFP tag which I think most relevant to this question :)
I again tested that with these codes as a sample and it worked without a glitch:
void Main()
{
string dbfFilesPath = #"C:\PROGRAM FILES (X86)\MICROSOFT VISUAL FOXPRO 9\SAMPLES\Data";
string conString = $#"Provider=Advantage OLE DB Provider;Data Source={dbfFilesPath};ServerType=ADS_LOCAL_SERVER;TableType=ADS_VFP;";
DataTable t = new DataTable();
using (OleDbConnection cn = new OleDbConnection(conString))
using (OleDbCommand cmd = new OleDbCommand($#"insert into Customer
(cust_id, company, contact)
values
(?,?,?)", cn))
{
cmd.Parameters.Add("#cId", OleDbType.VarChar);
cmd.Parameters.Add("#company", OleDbType.VarChar);
cmd.Parameters.Add("#contact", OleDbType.VarChar);
cn.Open();
for (int i = 0; i < 10; i++)
{
cmd.Parameters["#cId"].Value = $"XYZ#{i}";
cmd.Parameters["#company"].Value = $"Company XYZ#{i}";
cmd.Parameters["#contact"].Value = $"Contact XYZ#{i}";
cmd.ExecuteNonQuery();
}
t.Load(new OleDbCommand($"select * from Customer order by cust_id desc", cn).ExecuteReader());
cn.Close();
}
t.Dump(); // tested in LinqPad AnyCPU version
}
Here is the partial result I got:
XYZ#9 Company XYZ#9 Contact XYZ#9 0.0000
XYZ#8 Company XYZ#8 Contact XYZ#8 0.0000
XYZ#7 Company XYZ#7 Contact XYZ#7 0.0000
XYZ#6 Company XYZ#6 Contact XYZ#6 0.0000
XYZ#5 Company XYZ#5 Contact XYZ#5 0.0000
XYZ#4 Company XYZ#4 Contact XYZ#4 0.0000
XYZ#3 Company XYZ#3 Contact XYZ#3 0.0000
XYZ#2 Company XYZ#2 Contact XYZ#2 0.0000
XYZ#1 Company XYZ#1 Contact XYZ#1 0.0000
XYZ#0 Company XYZ#0 Contact XYZ#0 0.0000
XXXXXX Linked Server Company 0.0000
WOLZA Wolski Zajazd Zbyszek Piestrzeniewicz Owner ul. Filtrowa 68 Warszawa 01-012 Poland (26) 642-7012 (26) 642-7012 3694
WINCA Wenna Wines Vladimir Yakovski Owner 0.0000
WILMK Wilman Kala Matti Karttunen Owner/Marketing Assistant Keskuskatu 45 Helsinki 21240 Finland 90-224 8858 90-224 8858 4400
WHITC White Clover Markets Karl Jablonski Owner 305 - 14th Ave. S., Suite 3B Seattle WA 98128 USA (206) 555-4112 (206) 555-4115 38900
WELLI Wellington Importadora Paula Parente Sales Manager Rua do Mercado, 12 Resende SP 08737-363 Brazil (14) 555-8122 3600
WARTH Wartian Herkku Pirkko Koskitalo Accounting Manager Torikatu 38 Oulu 90110 Finland 981-443655 981-443655 24200
As it is not working for you, I think it might have to do with:
Access rights. You say, you use with ASP.Net MVC, I wonder if the 'connecting account' has only read access? In IIS, basic settings as I remember there were a setting for connect as. You might at least set it to connect by an account that has full rights to that directory.
Sharing. The file might be in use shared elsewhere and for some reason your insert is waiting trying to get lock?
SET NULL ON ? Another slight possibility. You might need to execute this first, on the same connection. If there are fields that you are not supplying a value in insert but "not null" in table structure would otherwise cause it to fail.
You might start testing the same file from say within LinqPad running with administrator rights to eliminate the access rights stuff alltogether (if data directory is under program files or program files (x86), then it is a problem by itself.
I would expect an immediate error message, but who knows maybe driver is waiting for a timeout in case of write access failure?
Some ideas (the way I do it:)
Instead of trying to use VFP data with 64 bits access, you might create a server that runs in 32 bits IIS Application pool (or use its own web serving) and handles the data access via REST API (or WCF). I use 32 bits ASP.Net MVC application(s) since years with success using VFOLEDB itself.
If you think of REST API path, you might either use ASP.Net core (which is fast unlike the pre core) or use something else, say Go for building it. Go and Iris framework, for an example is an excellent fit to build a REST API server for your data over night (unlikely you would think Go, but if you do, remember to compile with x86 architecture).
I'm a noob in cryptocurrencies and still hold some DAO_extraBalance tokens in MyEtherWallet. I want to convert these DAO_extraBalance tokens into Ether tokens (ETH) or Bitcoins (BTC). I've browsed through some old messages and found that support to convert DAO_extraBalance tokens to ETH or BTC halted via MyEtherWallet, Jaxx and Poloniex.
Furthermore, other options are quite complex, such as issuing an ExtraBalDaoWithdraw contract via: https://etherscan.io/address/0x755cdba6AE4F479f7164792B318b2a06c759833B#code.
I hope anyone can help me out with a step-by-step procedure - for dummies - how to convert DAO_extraBalance to ETH or BTC. A YouTube video with such a procedure would also help. Thanks in advance.
Download dist-v3.3.7.zip from MyEtherWallet v3.3.7 to your computer drive
Unzip the dist-v3.3.7.zip file
Double click on index.html
Click on the Withdraw DAO at the bottom of the page
Upload your Keystore File (UTC / JSON) and you will see the following screen (there are 0 refunds for the account shown):
Read more: https://medium.com/curator-multisig-phf-official-channel/dao-token-holders-come-claim-your-money-b428f186572a
See also: https://theethereum.wiki/w/index.php/The_DAO_Refunds#How_Do_I_Withdraw_The_DAO_Refunds.3F
I create a library with functions to insert data into a Fusion Table.This functions work fine.
Then, I create a new GAS proyect including this library. When I try to invoke the library function to insert data in FT, I always obtain "Authorizacion Requires". I grant the authorization all the times but it doesn't work (I'm the owner of all the GAS proyects and FT).
This is the url I see in Logs. The oAuth parameters are correct: UrlFetchApp.fetch([https://www.google.com/fusiontables/api/query, {oAuthServiceName=fusiontables, payload=sql=INSERT INTO 1MzzGAWuSZv_A1ETirCEHE8xWM5uBu7f3bJ0VPSc ('idProyecto','tipoNotificacion','idDocumento','fechaSolicitud','estado') values('dcccc','Eliminación IC','','Thu Aug 16 2012 13:36:41 GMT+0200 (CEST)','0'), oAuthUseToken=always, method=post}])
regards
I'm wanting to create a CloudFlare client in the Firemonkey framework. For those who don't know, CloudFlare serves as a CDN of sorts for anyone with a website. They have an API available, and as with many web API's, they are using JSON with a token-based system. It requires both the account email address and the account token to access the API. It runs on HTTPS, and as you can imagine, attempting to access the API via HTTP/non-SSL simply produces null results.
The application i wish to create would serve as an all-in-one management tool, intending to eliminate the need for me to use a web browser to manage my CloudFlare settings. I'm having the most basic of issues; SSL POST. See, i can submit an API request via a web browser and get a list of results (e.g. https://www.cloudflare.com/api_json.html?a=stats&z=DOMAIN&u=EMAIL&tkn=TOKEN - Personal details removed for obvious reasons), but i'm unsure how i would go about getting these same results (or any results from the API for that matter) in Firemonkey.
I've got Overbyte ICS with SSL installed, as well as the basic bundled Indy components, but i'm struggling to get started with this. I need to post a list of parameters to https://www.cloudflare.com/api_json.html via HTTPS/SSL, but i've very little idea on where to start. I've seen a few various example around SO, mostly using ICS, but i've been unable to find any specific to posting with multiple parameters, how i should format it, etc.
One example i tried was using ICS TSSLHttpCli, writing my parameters as a single string (i.e. a=stats&z=DOMAIN&u=EMAIL&tkn=TOKEN), writing that to the SendStream of TSSLHttpCli, seeking to 0,0, setting the URL (i.e. https://www.cloudflare.com/api_json.html?), and then calling the Post method. However, this gives me Connection aborted on request. This is the code i've tried (though i've replaced personal details with generic values);
var
Data : AnsiString;
RcvStrm, SndStrm : TMemoryStream;
begin
SndStrm := TMemoryStream.Create;
RcvStrm := TMemoryStream.Create;
Data := '?a=stats&z=MYDOMAIN&u=MYEMAIL&tkn=MYTOKEN';
SslHttpCli.SendStream := SndStrm;
SslHttpCli.SendStream.Write(Data[1],Length(Data));
SslHttpCli.SendStream.Seek(0,0);
Memo1.Lines.LoadFromStream(SndStrm);
ShowMessage('Waiting!');
SslHttpCli.RcvdStream := RcvStrm;
SslHttpCli.URL := 'https://www.cloudflare.com/api_json.html';
SslHttpCli.Post;
Memo1.Lines.Clear;
Memo1.Lines.LoadFromStream(RcvStrm);
Memo1.Lines.Add('.....');
RcvStrm.Free;
SndStrm.Free;
ShowMessage('Complete!');
end;
The ShowMessage procedures are simply there to provide a visual break so i can see what data is in the stream at each time. When Memo1.Lines.LoadFromStream(SndStrm); is called, i get a single question mark the contents of the Data in the memo as expected.
When i call Memo1.Lines.LoadFromStream(RcvStrm);, i expect it to add the return result from the API, and then the 5 dots underneath it. However, this does not happen, and it's apparent that the message i'm receiving is related to the issue. I'm assuming i've not set up the data correctly, but i'm simply unsure exactly how i should format it prior to attempting to post it. I've even commented out everything below Memo1.Lines.LoadFromStream(RcvStrm); to the end to see whether the Clear procedure is called on the memo, but the contents of the memo remain the same as they were when i called LoadFromStream(SndStrm). The final ShowMessage is also not called.
I initially tried using String instead of AnsiString, but this simply output the first character of Data rather than the whole string.
There could be numerous reasons why it's not working (all details for API access are correct, so it's an issue with the code), but i need someone with more experience and knowledge to point me in the right direction.
My network coding knowledge is limited, and i've only dealt with basic SQL and FTP in Delphi so far. I've still got to work with the parsed JSON once i do get past this step, but for now, can anyone assist me in this endeavor so i can get started?
I noticed you seemed to solve this with a GET request, but I noticed two immediate problems with your POST request:
as Runner Suggested, drop the '?' in your data. The '?' is only used when appending parameters to the URL in a GET request.
You never set the content type of the HTTP Request (should be application/x-www-form-urlencoded). You can do this with the following code:
SSLHttpCli.ContentTypePost := 'application/x-www-form-urlencoded';
Just a helpful thought. I checked https://www.cloudflare.com/docs/client-api.html and they mention that POST requests are accepted. It's possible the server rejects requests that have any other content type.
Just some food for thought if you ever need to contact another API via POST requests and want to use the Overbyte Components.
Hope the info is useful!
Try this;
SndStrm := TMemoryStream.Create;
RcvStrm := TMemoryStream.Create;
Data := 'a=stats&z=MYDOMAIN&u=MYEMAIL&tkn=MYTOKEN';
SndStrm.Write(Data[1], Length(Data));
SndStrm.Seek(0, 0);
SslHttpCli.SendStream := SndStrm;
Microsoft has recently broken our longtime (and officially recommended by them) code to read the version of Excel and its current omacro security level.
What used to work:
// Get the program associated with workbooks, e.g. "C:\Program Files\...\Excel.exe"
SHELLAPI.FindExecutable( 'OurWorkbook.xls', ...)
// Get the version of the .exe (from it's Properties...)
WINDOWS.GetFileVersionInfo()
// Use the version number to access the registry to determine the security level
// '...\software\microsoft\Office\' + VersionNumber + '.0\Excel\Security'
(I was always amused that the security level was for years in an insecure registry entry...)
In Office 2010, .xls files are now associated with "“Microsoft Application Virtualization DDE Launcher," or sftdde.exe. The version number of this exe is obviously not the version of Excel.
My question:
Other than actually launching Excel and querying it for version and security level (using OLE CreateOLEObject('Excel.Application')), is there a cleaner, faster, or more reliable way to do this that would work with all versions starting with Excel 2003?
Use
function GetExcelPath: string;
begin
result := '';
with TRegistry.Create do
try
RootKey := HKEY_LOCAL_MACHINE;
if OpenKey('SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\excel.exe', false) then
result := ReadString('Path') + 'excel.exe';
finally
Free;
end;
end;
to get the full file name of the excel.exe file. Then use GetFileVersionInfo as usual.
As far as I know, this approach will always work.
using OLE CreateOLEObject('Excel.Application'))
you can get installed Excel versions by using the same registry place, that this function uses.
Basically you have to clone a large part of that function registry code.
You can spy on that function call by tools like Microsoft Process Monitor too see exactly how does Windows look for installed Excel - and then to do it exactly the same way.
You have to open registry at HKEY_CLASSES_ROOT\ and enumerate all the branches, whose name starts with "Excel.Application."
For example at this my workstation I only have Excel 2013 installed, and that corresponds to HKEY_CLASSES_ROOT\Excel.Application.15
But on my another workstation I have Excel 2003 and Excel 2010 installed, testing different XLSX implementations in those two, so I have two registry keys.
HKEY_CLASSES_ROOT\Excel.Application.12
HKEY_CLASSES_ROOT\Excel.Application.14
So, you have to enumerate all those branches with that name, dot, and number.
Note: the key HKEY_CLASSES_ROOT\Excel.Application\CurVer would have name of "default" Excel, but what "default" means is ambiguous when several Excels are installed. You may take that default value, if you do not care, or you may decide upon your own idea what to choose, like if you want the maximum Excel version or minimum or something.
Then when for every specific excel branch you should read the default key of its CLSID sub-branch.
Like HKEY_CLASSES_ROOT\Excel.Application.15\CLSID has nil-named key equal to
{00024500-0000-0000-C000-000000000046} - fetch that index to string variable.
Then do a second search - go into a branch named like HKEY_CLASSES_ROOT\CLSID\{00024500-0000-0000-C000-000000000046}\LocalServer ( use the fetched index )
If that branch exists - fetch the nil-named "default key" value to get something like C:\PROGRA~1\MICROS~1\Office15\EXCEL.EXE /automation
The last result is the command line. It starts with a filename (non-quoted in this example, but may be in-quotes) and is followed by optional command line.
You do not need command line, so you have to extract initial commanlind, quoted or not.
Then you have to check if such an exe file exists. If it does - you may launch it, if not - check the registry for other Excel versions.