rpgiv 程序员面试初级题

database [OVRDBF] lets to override the filenames or attributes of\rfile selected when we compile/run program. Overrides can be used to change\rmost of the attributes. To cancel the override database command we shall\rhave to give delete override databases DLTOVR.\r(287) How do you 13ass numeric parameters for submitiob ?\rConvert numeric parameters to character and pass, or.pass in hexadecimal\rformat ( x'Onf' if 'n' contains odd number of digits\rx'nf' if 'n' contains even nunber of digits)\r(288) write code for SQL embedded using Select Maxima FLD3 value input to\rvarible\rVAR03, file name= file l, condition fld1= VAR01 ,fld2= VAR02\rC/ EXEC SQL\rC+ SELECT MAX(FLD3) INTO :VAR03 FROM FlLE1 WHERE FLD1 =\rC+ :VAR01 AND FLD2 = :VAR02\rC/END-EXEC