(no subject)

Guys , my insert statement is below . explain shows 828 for redo size . does it mean the no of blocks ? what should be the ideal value for the same ? what does the value for redo size = 828 indicate ?

kindly explain me.

insert into MSG_History
(Tel,MemNo,FromMemNo,Sex,PDate,Content,S_Name,S_Age,S_Hight,S_Style,S_BloodType,S_LooksLike,Name,Age,Hight,Style,BloodType,LooksLike,REFERER,MSGID,DelFLG,RefCNT,EntPC,Opt1)
values
(:RTEL,:RMEMNO,:SID,:op_sex,SYSDATE,:MESSAGE,:NAME,:AGE,:HIGHT,:STYLE,:BLOODTYPE,:LOOKSLIKE,:RNAME,:RAGE,:RHIGHT,:RSTYLE,:RBLOODTYPE,:RLOOKSLIKE,'żżż',GetMSGID.NextVal,0,0,:EntPC,:POSTNO)

Elapsed: 00:00:00.69

Execution Plan

    0 INSERT STATEMENT Optimizer=CHOOSE (Cost=39185 Card=6800153 B

           ytes=1523234272)

    1 0 SEQUENCE OF 'GETMSGID' Statistics

           0  recursive calls
           8  db block gets
           1  consistent gets
           1  physical reads
         828  redo size
         858  bytes sent via SQL*Net to client
        1520  bytes received via SQL*Net from client
           3  SQL*Net roundtrips to/from client
           2  sorts (memory)
           0  sorts (disk)
           1  rows processed

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