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Full Discussion: Fixed-Width file from Oracle
Top Forums Shell Programming and Scripting Fixed-Width file from Oracle Post 302414356 by durden_tyler on Tuesday 20th of April 2010 01:08:25 AM
Old 04-20-2010
Quote:
Originally Posted by Amit.Sagpariya
...
I have created a script which generates FIXED-WIDTH file by executing Oracle query.

Code:
 
SELECT RPAD(NVL(col1,CHR(9)),20)||NVL(col2,CHR(9))||NVL(col3,CHR(9) FROM XYZ

It generates the data file with proper alignment....
Well I don't see a properly aligned output at all -

Code:
SQL> 
SQL> 
SQL> desc t
 Name                       Null?    Type
 ----------------------------------------- -------- ----------------------------
 COL1                            VARCHAR2(10)
 COL2                            VARCHAR2(10)
 COL3                            VARCHAR2(10)

SQL> 
SQL> select rownum, t.* from t;

    ROWNUM COL1       COL2     COL3
---------- ---------- ---------- ----------
     1 a          b      c
     2 a          b
     3 a             c
     4          b      c
     5 a
     6          b
     7             c
     8

8 rows selected.

SQL> 
SQL> SELECT RPAD(NVL(col1,CHR(9)),20)||NVL(col2,CHR(9))||NVL(col3,CHR(9)) x FROM t;

X
--------------------------------------------------------------------------------
a            bc
a            b    
a                c
               bc
a                    
               b    
                   c
                       

8 rows selected.

SQL> 
SQL>

Maybe you wanted to do something like this ?

Code:
SQL> 
SQL> var filler varchar2(1)
SQL> 
SQL> exec :filler := '~';

PL/SQL procedure successfully completed.

SQL> 
SQL> SELECT RPAD(NVL(col1,:filler),20)||RPAD(NVL(col2,:filler),20)||RPAD(NVL(col3,:filler),20) x FROM t;

X
--------------------------------------------------------------------------------
a            b            c
a            b            ~
a            ~            c
~            b            c
a            ~            ~
~            b            ~
~            ~            c
~            ~            ~

8 rows selected.

SQL> 
SQL> exec :filler := ' ';

PL/SQL procedure successfully completed.

SQL> 
SQL> SELECT RPAD(NVL(col1,:filler),20)||RPAD(NVL(col2,:filler),20)||RPAD(NVL(col3,:filler),20) x FROM t;

X
--------------------------------------------------------------------------------
a            b            c
a            b
a                    c
            b            c
a
            b
                    c


8 rows selected.

SQL> 
SQL> exec :filler := '#';

PL/SQL procedure successfully completed.

SQL> 
SQL> SELECT RPAD(NVL(col1,:filler),20)||RPAD(NVL(col2,:filler),20)||RPAD(NVL(col3,:filler),20) x FROM t;

X
--------------------------------------------------------------------------------
a            b            c
a            b            #
a            #            c
#            b            c
a            #            #
#            b            #
#            #            c
#            #            #

8 rows selected.

SQL>

tyler_durden

NB: this textbox's formatting options mess up the 2nd case when the bind variable is a blank space; it should work fine on command line sqlplus. Of course, the font in your viewer application (text editor or sqlplus terminal window etc.) must be fixed width.
 

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