internal static DataTable GetData(string connectionString, TableItem table, Guid id)
{
var filters = table.Columns.Select(c => string.Format("[{0}] = '{1}'", c.Name, id)).Aggregate((o, n) => o + " or " + n);
var sql = string.Format("select * from [{0}].[{1}] where {2}", table.Schema, table.Name, filters);
using (var da = new SqlDataAdapter(sql, connectionString))
{
var result = new DataTable();
da.Fill(result);
return(result);
}
}
internal static List <TableItem> Search(string connectionString, Guid id)
{
using (var cn = new SqlConnection(connectionString))
using (var cm = cn.CreateCommand())
{
cm.CommandText = @"set nocount on
declare @table sysname, @column sysname, @schema sysname, @sql nvarchar(1000), @count int
declare @result table (schemaName sysname, tableName sysname, columnName sysname, amount int)
declare cur cursor local for
select t1.name, t2.name, t3.name from sys.tables t1 join sys.columns t2 on t1.object_id = t2.object_id
join sys.schemas t3 on t1.schema_id = t3.schema_id where t2.system_type_id = '36'
open cur
fetch next from cur into @table, @column, @schema
while @@fetch_status = 0
begin
set @count = 0
set @sql = 'select @count = count(*) from ' + quotename(@schema) + '.' + quotename(@table) + ' where ' + quotename(@column) + ' = @id'
print @sql
exec sp_executesql @sql, N'@id uniqueidentifier, @count int out', @id, @count out
if @count > 0
insert @result values (@schema, @table, @column, @count)
fetch next from cur into @table, @column, @schema
end
close cur
deallocate cur
select schemaName, tableName, columnName, amount from @result";
cm.Parameters.AddWithValue("id", id);
cn.Open();
using (var dr = cm.ExecuteReader())
{
var result = new List <TableItem>();
while (dr.Read())
{
var schemaName = dr.GetString(0);
var tableName = dr.GetString(1);
var tableItem = result.Find(t => t.Schema == schemaName && t.Name == tableName);
if (tableItem == null)
{
tableItem = new TableItem {
Schema = schemaName, Name = tableName
};
result.Add(tableItem);
}
tableItem.Columns.Add(new ColumnItem
{
Name = dr.GetString(2),
RowsCount = dr.GetInt32(3)
});
}
return(result);
}
}
}
