private static void GetTypeSqlToRenameColumnCommand(string columnName, SqlColumnStructure colStructure, StringBuilder builder, string alterColumn)
{
var colType = colStructure.Type;
if (!String.IsNullOrEmpty(colType))
{
builder.AppendFormat("{0} {1} TYPE {2} USING {1}::{2},", alterColumn, columnName, colType);
}
}
private void GetNullableSqlToRenameColumnCommand(string columnName, SqlColumnStructure colStructure, StringBuilder builder, string alterColumn)
{
var colNullable = colStructure.Nullable;
if (!String.IsNullOrEmpty(colNullable))
{
var action = colNullable == _wordNotNull ? "SET" : "DROP";
builder.AppendFormat("{0} {1} {2} {3},", alterColumn, columnName, action, _wordNotNull);
}
}
private static void GetDefaultValueSqlToRenameColumnCommand(string columnName, SqlColumnStructure colStructure, StringBuilder builder, string alterColumn)
{
var colDefault = colStructure.Default;
if (!String.IsNullOrEmpty(colDefault))
{
builder.AppendFormat("{0} {1} SET {2},", alterColumn, columnName, colDefault);
}
}