static BulkCopyRowsCopied OracleMultipleRowsCopy3(MultipleRowsHelper helper, IEnumerable source)
{
helper.StringBuilder
.AppendFormat("INSERT INTO {0}", helper.TableName).AppendLine()
.Append("(");
foreach (var column in helper.Columns)
{
helper.StringBuilder
.AppendLine()
.Append("\t")
.Append(helper.SqlBuilder.Convert(column.ColumnName, ConvertType.NameToQueryField))
.Append(",");
}
helper.StringBuilder.Length--;
helper.StringBuilder
.AppendLine()
.AppendLine(")")
;
helper.SetHeader();
foreach (var item in source)
{
helper.StringBuilder
.AppendLine()
.Append("\tSELECT ");
helper.BuildColumns(item, _ => _.DataType == DataType.Text || _.DataType == DataType.NText);
helper.StringBuilder.Append(" FROM DUAL ");
helper.StringBuilder.Append(" UNION ALL");
helper.RowsCopied.RowsCopied++;
helper.CurrentCount++;
if (helper.CurrentCount >= helper.BatchSize || helper.Parameters.Count > 10000 || helper.StringBuilder.Length > 100000)
{
helper.StringBuilder.Length -= " UNION ALL".Length;
helper.StringBuilder
.AppendLine()
;
if (!helper.Execute())
{
return(helper.RowsCopied);
}
}
}
if (helper.CurrentCount > 0)
{
helper.StringBuilder.Length -= " UNION ALL".Length;
helper.StringBuilder
.AppendLine()
;
helper.Execute();
}
return(helper.RowsCopied);
}
BulkCopyRowsCopied MultipleRowsCopy2 <T>(
DataConnection dataConnection, BulkCopyOptions options, IEnumerable <T> source)
{
var helper = new MultipleRowsHelper <T>(dataConnection, options, options.KeepIdentity ?? false);
helper.StringBuilder.AppendFormat("INSERT INTO {0} (", helper.TableName);
foreach (var column in helper.Columns)
{
helper.StringBuilder
.Append(helper.SqlBuilder.Convert(column.ColumnName, ConvertType.NameToQueryField))
.Append(", ");
}
helper.StringBuilder.Length -= 2;
helper.StringBuilder.Append(") VALUES (");
for (var i = 0; i < helper.Columns.Length; i++)
{
helper.StringBuilder.Append(":p" + (i + 1)).Append(", ");
}
helper.StringBuilder.Length -= 2;
helper.StringBuilder.AppendLine(")");
helper.SetHeader();
var list = new List <T>(31);
foreach (var item in source)
{
list.Add(item);
helper.RowsCopied.RowsCopied++;
helper.CurrentCount++;
if (helper.CurrentCount >= helper.BatchSize)
{
if (!Execute(dataConnection, helper, list))
{
return(helper.RowsCopied);
}
list.Clear();
}
}
if (helper.CurrentCount > 0)
{
Execute(dataConnection, helper, list);
}
return(helper.RowsCopied);
}
static BulkCopyRowsCopied OracleMultipleRowsCopy2(MultipleRowsHelper helper, IEnumerable source)
{
helper.StringBuilder.AppendFormat("INSERT INTO {0} (", helper.TableName);
foreach (var column in helper.Columns)
{
helper.StringBuilder
.Append(helper.SqlBuilder.Convert(column.ColumnName, ConvertType.NameToQueryField))
.Append(", ");
}
helper.StringBuilder.Length -= 2;
helper.StringBuilder.Append(") VALUES (");
for (var i = 0; i < helper.Columns.Length; i++)
{
helper.StringBuilder.Append(":p" + (i + 1)).Append(", ");
}
helper.StringBuilder.Length -= 2;
helper.StringBuilder.AppendLine(")");
helper.SetHeader();
var list = new List <object>(31);
foreach (var item in source)
{
list.Add(item);
helper.RowsCopied.RowsCopied++;
helper.CurrentCount++;
if (helper.CurrentCount >= helper.BatchSize)
{
if (!Execute(helper, list))
{
return(helper.RowsCopied);
}
list.Clear();
}
}
if (helper.CurrentCount > 0)
{
Execute(helper, list);
}
return(helper.RowsCopied);
}
protected override BulkCopyRowsCopied MultipleRowsCopy <T>(
DataConnection dataConnection, BulkCopyOptions options, IEnumerable <T> source)
{
var helper = new MultipleRowsHelper <T>(dataConnection, options, false);
helper.StringBuilder.AppendLine("INSERT ALL");
helper.SetHeader();
foreach (var item in source)
{
helper.StringBuilder.AppendFormat("\tINTO {0} (", helper.TableName);
foreach (var column in helper.Columns)
{
helper.StringBuilder
.Append(helper.SqlBuilder.Convert(column.ColumnName, ConvertType.NameToQueryField))
.Append(", ");
}
helper.StringBuilder.Length -= 2;
helper.StringBuilder.Append(") VALUES (");
helper.BuildColumns(item);
helper.StringBuilder.AppendLine(")");
helper.RowsCopied.RowsCopied++;
helper.CurrentCount++;
if (helper.CurrentCount >= helper.BatchSize || helper.Parameters.Count > 10000 ||
helper.StringBuilder.Length > 100000)
{
helper.StringBuilder.AppendLine("SELECT * FROM dual");
if (!helper.Execute())
{
return(helper.RowsCopied);
}
}
}
if (helper.CurrentCount > 0)
{
helper.StringBuilder.AppendLine("SELECT * FROM dual");
helper.Execute();
}
return(helper.RowsCopied);
}
