/// <summary>
/// Dumps all the schemas in the datasource
/// </summary>
public static void DumpDataSchema(DbConnection connection)
{
//TODO: for metadatacollection first and extract everything else from it
string[] list = new string[] {
"MetaDataCollections",
"DataSourceInformation",
"DataTypes",
"ReservedWords",
"Catalogs",
"Columns",
"Indexes",
"IndexColumns",
"Tables",
"Views",
"ViewColumns",
"ForeignKeys",
"Triggers"
};
foreach (string s in list)
{
DataTable table = connection.GetSchema(s);
if (table != null)
{
DbUtilities.DumpDataTable(table);
}
}
}
/// <summary>
/// Checks whether a column with given name exists in the given table
/// </summary>
public static bool ColumnExists(DbConnection connection, string tableName, string columnName)
{
// extracting fields of the given table only
string[] restrictions = new string[3];
restrictions[2] = tableName;
DataTable table = connection.GetSchema("Columns", restrictions);
if (table != null)
{
DbUtilities.DumpDataTable(table);
int index = table.Columns.IndexOf("COLUMN_NAME");
if (index >= 0)
{
foreach (DataRow row in table.Rows)
{
if (row[index].ToString().ToLower() == columnName.ToLower())
{
return(true);
}
}
}
}
return(false);
}
