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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Data.SqlClient; ......

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S:select abs(-1) value
O:select abs(-1)  value from dual
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S:select ceiling(-1.001) value  
O:select ceil(-1.001)  value from dual
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S:select floor(-1.001) value  
O:select floor(-1.001)  value from dual
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