static string GetSelectSql(AnyDbConnection cnn, Select query)
{
ISqlOmRenderer renderer = Qb.CreateRenderer(cnn.DatabaseProvider);
string sql = renderer.RenderSelect(query);
return(sql);
}
public DbDataReader ExecuteReader(Select query, CommandBehavior behavior)
{
ISqlOmRenderer render = Qb.CreateRenderer(_anyConnection.DatabaseProvider);
_dbCommand.CommandText = render.RenderSelect(query);
_dbCommand.CommandType = CommandType.Text;
FillParameters(_dbCommand, query.Query.CommandParams, render);
return(ExecuteReader(behavior));
}
public object ExecuteScalar(Select query)
{
ISqlOmRenderer render = Qb.CreateRenderer(_anyConnection.DatabaseProvider);
_dbCommand.CommandText = render.RenderSelect(query);
_dbCommand.CommandType = CommandType.Text;
FillParameters(_dbCommand, query.Query.CommandParams, render);
return(ExecuteScalar());
}
//public string GetSqlRowCount(Select query)
//{
// ISqlOmRenderer renderer = Qb.CreateRenderer(AnyDbSetting.DatabaseProvider);
// return renderer.RenderRowCount(query);
//}
//public string GetSql(Select query, int pageIndex, int pageSize, int totalCount)
//{
// ISqlOmRenderer renderer = Qb.CreateRenderer(AnyDbSetting.DatabaseProvider);
// return renderer.RenderPage(pageIndex, pageSize, totalCount, query);
//}
public string GetSql(Select query)
{
ISqlOmRenderer renderer = Qb.CreateRenderer(AnyDbSetting.DatabaseProvider);
return(renderer.RenderSelect(query));
}
/// <summary>
/// Renders a single WhereTerm
/// </summary>
/// <param name="builder"></param>
/// <param name="term"></param>
protected virtual void WhereClause(StringBuilder builder, WhereTerm term)
{
if (term.Type == WhereTermType.Compare && term.Op == CompCond.BitwiseAnd)
{
BitwiseAnd(builder, term);
}
else if (term.Type == WhereTermType.Compare)
{
Expression(builder, term.Expr1);
builder.Append(" ");
Operator(builder, term.Op);
builder.Append(" ");
Expression(builder, term.Expr2);
if (term.Op == CompCond.Like && term.Expr3 != null)
{
builder.AppendFormat(" escape '{0}'", Convert.ToString(((OmConstant)term.Expr3.Value).Value));
}
}
else if (term.Type == WhereTermType.In || term.Type == WhereTermType.NotIn || term.Type == WhereTermType.InSubQuery || term.Type == WhereTermType.NotInSubQuery)
{
Expression(builder, term.Expr1);
if (term.Type == WhereTermType.NotIn || term.Type == WhereTermType.NotInSubQuery)
{
builder.Append(" not");
}
builder.Append(" in (");
if (term.Type == WhereTermType.InSubQuery || term.Type == WhereTermType.NotInSubQuery)
{
if (term.SubQuery is SelectQuery)
{
ISqlOmRenderer innerRender = this.CreateNew();
builder.Append(innerRender.RenderSelect(term.SubQuery as SelectQuery));
}
else if (term.SubQuery is string)
{
builder.Append((string)term.SubQuery);
}
else
{
throw new InvalidQueryException(SR.Err_SubQueryUnavelable);
}
}
else
{
ConstantList(builder, term.Values);
}
builder.Append(")");
}
else if (term.Type == WhereTermType.Exists || term.Type == WhereTermType.NotExists)
{
if (term.Type == WhereTermType.NotExists)
{
builder.Append(" not");
}
builder.Append(" exists (");
if (term.SubQuery is SelectQuery)
{
ISqlOmRenderer innerRender = this.CreateNew();
builder.Append(innerRender.RenderSelect(term.SubQuery as SelectQuery));
}
else if (term.SubQuery is string)
{
builder.Append((string)term.SubQuery);
}
else
{
throw new InvalidQueryException(
#if !TEST
SR.Err_SubQueryUnavelable
#else
""
#endif
);
}
builder.Append(")");
}
else if (term.Type == WhereTermType.Between)
{
Expression(builder, term.Expr1);
builder.AppendFormat(" between ");
Expression(builder, term.Expr2);
builder.AppendFormat(" and ");
Expression(builder, term.Expr3);
}
else if (term.Type == WhereTermType.IsNull || term.Type == WhereTermType.IsNotNull)
{
Expression(builder, term.Expr1);
builder.Append(" is ");
if (term.Type == WhereTermType.IsNotNull)
{
builder.Append("not ");
}
builder.Append(" null ");
}
}
