firedac

I open a TFDConnection for MS SQL Server with parameters: DriverID=MSSQL Password=test User_Name=test Server=VS2003-2008 Database=test Single Connection=TRUE Max Cursors=256 USE OLEDB=TRUE I then create a TFDQuery (run time), set its connection to the above, fill it with an parameterized INSERT query: insert into TT_ACT (TT_ACT_ID,TT_PARENT_ID,TT_FROMDATE,TT_TODATE,TT_NAME,TT_NR,TT_CODE,TT_GROUP...) values (:TT_ACT_ID,:TT_PARENT_ID,:TT_FROMDATE,:TT_TODATE,:TT_NAME,:TT_NR,:TT_CODE,:TT_GROUP,...) I then call Prepare for the query and get: [FireDAC][Phys][MSSQL]-335 Parameter [TT_ACT_ID] data

Using Delphi 10.2, SQLite and Teecharts. My SQLite database has two fields, created with: CREATE TABLE HistoryRuntime ('DayTime' DateTime, Device1 INTEGER DEFAULT (0)); I access the table using a TFDQuery called qryGrpahRuntime with the following SQL: SELECT DayTime AS TheDate, Sum(Device1) As DeviceTotal FROM HistoryRuntime WHERE (DayTime >= "2017-06-01") and (DayTime <= "2017-06-26") Group by Date(DayTime) Using the Field Editor in the Delphi IDE, I can add two persistent fields, getting TheDate as a TDateTimeField and DeviceTotal as a TLargeIntField . I run this query in a program to create

I have a Delphi 10.1 Berlin Datasnap Server, that can't return Data packets (through a TStream) bigger than around 260.000 bytes. I have programmed it following the \Object Pascal\DataSnap\FireDAC sample from Delphi, which also shows this problem. The problem can be seen just opening that sample, setting blank the IndexFieldName of the qOrders component on ServerMethodsUnit.pas, and changing its SQL property to : select * from Orders union select * from Orders Now the amount of data to be send is beyond 260.000 bytes, which seems to be the point where you can't retrieve it from the client.