public override System.Data.Common.DbParameter get_par(schema_field col)
{
if (col.original_type == "datetime")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.DateTime));
}
else if (col.original_type == "datetime2")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.DateTime2));
}
else if (col.original_type == "int")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.Int));
}
else if (col.original_type == "smallint")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.SmallInt));
}
else if (col.original_type == "bigint")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.BigInt));
}
else if (col.original_type == "long")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.BigInt));
}
else if (col.original_type == "char" || col.original_type == "varchar" || col.original_type == "nchar" || col.original_type == "nvarchar")
{
return(col.max_length.Value > 0 ? new SqlParameter("@" + col.name.ToUpper(), SqlDbType.VarChar, col.max_length.Value)
: new SqlParameter("@" + col.name.ToUpper(), SqlDbType.VarChar));
}
else if (col.original_type == "text" || col.original_type == "ntext")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.Text));
}
else if (col.original_type == "xml")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.Xml));
}
else if (col.original_type == "bit")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.Bit));
}
else if (col.original_type == "decimal" || col.original_type == "numeric")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.Decimal));
}
else if (col.original_type == "float" || col.original_type == "real" || col.original_type == "money" || col.original_type == "smallmoney")
{
return(new SqlParameter("@" + col.name.ToUpper(), SqlDbType.Float));
}
else
{
throw new Exception("tipo di dati '" + col.original_type + "' non supportato per l'importazione dei dati");
}
}
public static XmlNode create_field_node(XmlDocument doc, schema_field fld)
{
return(xml_node.set_attrs(doc.CreateElement("col"), new Dictionary <string, string>()
{
{ "name", fld.name }, { "name-upper", fld.name.ToUpper() }
, { "type", fld.original_type }, { "autonumber", fld.auto_number ? "true" : "" }
, { "nullable", fld.nullable ? "true" : "" }, { "default", fld.def_val }
, { "maxlength", fld.max_length.HasValue ? fld.max_length.Value.ToString() : "" }
, { "numprec", fld.num_prec.HasValue ? fld.num_prec.Value.ToString() : "" }
, { "numscale", fld.num_scale.HasValue ? fld.num_scale.Value.ToString() : "" }
}));
}
public XmlNode set_field(string table, schema_field new_field)
{
XmlNode col_node = field_node(table, new_field.name);
if (col_node == null)
{
return(xml_node.add_node(table_node(table).SelectSingleNode("cols"), create_field_node(new_field)));
}
XmlNode res = xml_node.add_node(table_node(table).SelectSingleNode("cols"), create_field_node(new_field), col_node);
col_node.ParentNode.RemoveChild(col_node);
return(res);
}
public override System.Data.Common.DbParameter get_par(schema_field col)
{
OleDbParameter result = null;
if (col.original_type == "datetime")
{
result = new OleDbParameter("@" + col.name.ToUpper(), OleDbType.DBDate);
}
else if (col.original_type == "int" || col.original_type == "smallint")
{
result = new OleDbParameter("@" + col.name.ToUpper(), OleDbType.Integer);
}
else if (col.original_type == "bigint" || col.original_type == "long")
{
result = new OleDbParameter("@" + col.name.ToUpper(), OleDbType.BigInt);
}
else if (col.original_type == "char" || col.original_type == "varchar" || col.original_type == "text" ||
col.original_type == "nchar" || col.original_type == "nvarchar" || col.original_type == "ntext")
{
result = new OleDbParameter("@" + col.name.ToUpper(), OleDbType.VarChar, col.max_length.Value);
}
else if (col.original_type == "bit")
{
result = new OleDbParameter("@" + col.name.ToUpper(), OleDbType.Boolean);
}
else if (col.original_type == "float" || col.original_type == "real" || col.original_type == "decimal" || col.original_type == "money" ||
col.original_type == "smallmoney" || col.original_type == "numeric")
{
result = new OleDbParameter("@" + col.name.ToUpper(), OleDbType.Double);
}
else
{
throw new Exception("tipo di dati '" + col.original_type + "' non supportato per l'importazione dei dati");
}
return(result);
}
public virtual void alter_field(schema_field tblfield, string tableName)
{
throw new Exception("il provider " + _dbType.ToString() + " non supporta la funzionalità alterFieldTable");
}
public virtual void drop_field(schema_field field, string tableName)
{
throw new Exception("il provider " + _dbType.ToString() + " non supporta la funzionalità dropFieldToTable");
}
public virtual System.Data.Common.DbParameter get_par(schema_field col)
{
throw new Exception("il provider " + _dbType.ToString() + " non supporta la funzionalità getParameter");
}
public override void upd_field(schema_field tblField, string tableName)
{
exec("ALTER TABLE " + tableName + " ALTER COLUMN " + tblField.fld_sql_server());
}
public override void alter_field(schema_field tblfield, string tableName)
{
exec("ALTER TABLE [" + tableName + "] ALTER COLUMN "
+ tblfield.fld_access());
}
public override void drop_field(schema_field field, string tableName)
{
exec("ALTER TABLE [" + tableName + "] DROP COLUMN [" + field.name + "]");
}
public override void add_field(schema_field tblField, string tableName)
{
exec("ALTER TABLE [" + tableName + "] ADD "
+ tblField.fld_access());
}
public XmlNode create_field_node(schema_field fld)
{
return(create_field_node(_doc.doc, fld));
}