private void CreateBestInsertCommand(int maxRows)
{
int numRows = 0;
List <string> paramRows = new List <string>();
List <string> insertStantement = new List <string>();
int parmLength = 0;
int insertLength = 0;
int parmNum = 0;
for (int r = 0; r < maxRows; r++)
{
List <string> inputParms = new List <string>();
List <string> insertValues = new List <string>();
for (int c = 0; c < ParameterSet.Count; c++)
{
string parName = $"P{parmNum++}";
inputParms.Add($"{parName} {ParameterSet[c].CastValue}");
insertValues.Add($":{parName}");
}
string paramNames = string.Join("\n,", inputParms);
string insertRow = $"insert into {DestinationTableName} values({ string.Join(",", insertValues.Select(x => x))});";
if (parmLength + insertLength + insertRow.Length + paramNames.Length > MaxCommandLength)
{
break;
}
paramRows.Add(paramNames);
parmLength += paramNames.Length;
insertStantement.Add(insertRow);
insertLength += insertRow.Length;
foreach (InputParameter parameter in ParameterSet)
{
FbParameter rowParam = InsertCommand.CreateParameter();
rowParam.DbType = parameter.DbType;
//rowParam.IsNullable = parameter.IsNullable;
InsertCommand.Parameters.Add(rowParam);
}
numRows++;
}
CurrentInsertCount = numRows;
InsertCommand.CommandText = (new StringBuilder("execute block (")
.Append(string.Join(",\n", paramRows))
.Append(")\nas begin\n")
.Append(string.Join("\n", insertStantement))
.Append("\nend")
.ToString());
InsertCommand.Prepare();
}
