protected override string ParseColumnAlter(TableColumnSchema mColumn, TableColumnSchema eColumn)
{
return(string.Format(@" [{0}] {1}{2} ",
mColumn.Name,
MssqlSchemaLoader.TypeDbsmToSql(mColumn),
mColumn.Nullable ? string.Empty : @" NOT NULL"));
}
/// <summary>
/// Создать схему метаданных из исходной базы
/// </summary>
/// <param name="connStr"></param>
public override DBSchema LoadExistingSchema(string connStr)
{
var schema = MssqlSchemaLoader.LoadSchema(connStr);
foreach (var table in schema.Tables)
{
table.Keys = table.Keys
.Where(key => key.KeyType != ConstraintType.Default)
.ToArray();
}
return(schema);
}
protected override string ParseColumn(TableColumnSchema column)
{
var stat = new StringBuilder();
stat.Append(MakeDdlElementName(column.Name) + MssqlSchemaLoader.TypeDbsmToSql(column));
if (column.AutoIncrement)
{
stat.AppendFormat(@" IDENTITY ({0},{1})", column.Seed, column.Increment);
}
else if (!string.IsNullOrEmpty(column.DefaultValue))
{
stat.Append(@" DEFAULT " + column.DefaultValue);
}
if (!column.Nullable)
{
stat.Append(@" NOT NULL");
}
return(stat.ToString());
}