protected void AppendWhereClause(
StringBuilder statement,
IComparedColumnsSpecification comparedColumns,
IDbCommand command)
{
statement.Append(" WHERE ");
comparedColumns.AddParameters(command, SqlDialect);
comparedColumns.AppendComparisons(statement, command, SqlDialect);
}
public override IDbCommand Create(IRdbmsProviderCommandExecutionContext commandExecutionContext)
{
ArgumentUtility.CheckNotNull("commandExecutionContext", commandExecutionContext);
var command = commandExecutionContext.CreateDbCommand();
var fullProjection = _orderedColumns.UnionWithSelectedColumns(_selectedColumns);
var statement = new StringBuilder();
bool first = true;
_comparedColumns.AddParameters(command, SqlDialect);
foreach (var table in _unionViewDefinition.GetAllTables())
{
if (!first)
{
statement.Append(" UNION ALL ");
}
var adjustedProjection = fullProjection.AdjustForTable(table);
AppendSelectClause(statement, adjustedProjection);
AppendFromClause(statement, table);
statement.Append(" WHERE ");
_comparedColumns.AppendComparisons(statement, command, SqlDialect);
first = false;
}
AppendOrderByClause(statement, _orderedColumns);
statement.Append(SqlDialect.StatementDelimiter);
command.CommandText = statement.ToString();
return(command);
}
