// Configure source connection (assume connection manager already exists) var cm = pkg.Connections["FlatFileConn"]; source.RuntimeConnectionCollection[0].ConnectionManager = DtsConvert.GetExtendedInterface(cm); source.RuntimeConnectionCollection[0].ConnectionManagerID = cm.ID;
Error 0xC0202009 at Data Flow Task, OLE DB Source [1]: The data type of column "CustomerID" is unknown. Consequences:
$schema | ConvertTo-Json -Depth 3 | Set-Content -Path "$FilePath.schema.json" Write-Host "Schema written to $FilePath.schema.json" using Microsoft.SqlServer.Dts.Runtime; using Microsoft.SqlServer.Dts.Pipeline.Wrapper; using System.IO; using Newtonsoft.Json.Linq;
var pipeline = (MainPipe)dfTask.InnerObject; var source = pipeline.ComponentMetaDataCollection.New(); source.ComponentClassID = "DTSAdapter.FlatFileSource"; SSIS-965
// Add OLE DB Destination similarly... pipeline.ReinitializeMetaData(); pkg.Save();
contains an additional column Region at the end:
class FlowBuilder
static void Main(string[] args) string pkgPath = args[0]; // Path to master package string schemaFile = args[1]; // JSON schema var pkg = Application.LoadPackage(pkgPath, null);
// Locate Data Flow Task (by name) var dfTask = (TaskHost)pkg.Executables .Cast<Executable>() .First(e => ((TaskHost)e).Name == "DF_LoadDynamic");
// Load schema JSON var schema = JArray.Parse(File.ReadAllText(schemaFile)); foreach (var col in schema) var input = source.InputCollection[0]; var colMeta = input.InputColumnCollection.New(); colMeta.Name = col["ColumnName"].ToString(); colMeta.DataType = DataType.DT_WSTR; // Map to DT_WSTR for nvarchar colMeta.Length = 4000; The error message looks like:
$firstLine = Get-Content -Path $FilePath -TotalCount 1 $headers = $firstLine -split $Delimiter
is a defect that surfaces only in runtime , when the metadata (column names, data types, lengths, nullability) that SSIS builds at design‑time does not match the actual schema that the source delivers at execution. The error message looks like: