public IStatement Execute()
{
IParser parser = null;
if (_tokenizer.TokenEquals(Constants.Table))
parser = new CreateTableStatementParser(_tokenizer);
if (_tokenizer.TokenEquals(Constants.View))
parser = new CreateViewStatementParser(_tokenizer);
//if ( _tokenizer.TokenEquals( Constants.Procedure ) )
// parser = new CreateProcedureStatementParser( _tokenizer );
//if ( _tokenizer.TokenEquals( Constants.Trigger ) )
// parser = new CreateTriggerStatementParser( _tokenizer );
if (_tokenizer.IsNextToken(
Constants.Unique,
Constants.Clustered,
Constants.NonClustered,
Constants.Index
)
)
parser = new CreateIndexParser(_tokenizer);
return parser != null ? parser.Execute() : null;
}
public IStatement Execute()
{
IParser parser = null;
if ( _tokenizer.TokenEquals( Constants.Table ) )
parser = new AlterTableStatementParser( _tokenizer );
if (_tokenizer.TokenEquals(Constants.View))
parser = new CreateViewStatementParser(_tokenizer) { IsAlter = true };
//if ( _tokenizer.TokenEquals( Constants.Procedure ) )
// parser = new AlterProcedureStatementParser( _tokenizer );
//if ( _tokenizer.TokenEquals( Constants.Trigger ) )
// parser = new AlterTriggerStatementParser( _tokenizer );
return parser != null ? parser.Execute() : null;
}
