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String data="It is Sunday.";String str1;str1=data.substring(1,5);则str1为（）
- A、Iti
- B、tis
- C、tisi
- D、Itis
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recover using Oracle Flashback Database technologyB
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考题
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yB
.C
nullD
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考题
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Binary data up to 4 gigabytes.B
Character data up to 4 gigabytes.C
Raw binary data of variable length up to 2 gigabytes.D
Binary data stored in an external file, up to 4 gigabytes.E
A hexadecimal string representing the unique address of a row in its table.
考题
单选题下列程序的运行结果是（ ）。public class test{private String [] data = {"10","10.5"};public void fun(){ double s = 0; for(int i = 0; i try{ s = s + Integer.parseInt(data[i]); } catch(Exception e){ System.out.print("error1:" + data[i]); } }}public static void main(String[] args){ try{ test d = new test(); d.fun(); } catch(Exception e){ System.out.println("error2"); }} }A
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error2C
error1：10.5error2D
以上都不对
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Update the connection string of the DSProduction shared data source to point to the alternate data source.B
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