divide a column value and insert it into several columns
Helloam new to plsql.
I want to divide a characters in a column and insert into multiple columns
I tried the function substr used the symbol ',' vary its place dynamically, so I can't apply the substr function.
for example: before split
col1:
col2:
COL3:
COL4:
colu5: adsdf, fgrty, erfth, oiunth, okujt
after separation
col1: adsd
col2: fgrty
COL3: erfth
COL4: oiunth
col5: adsdf, fgrty, erfth, oiunth, okujt
can someone help me
Thank you
Published by: 800324 on December 23, 2010 08:28
Published by: 800324 on December 23, 2010 08:36
What:
SQL> create table t
2 (col1 varchar2(30)
3 ,col2 varchar2(30)
4 ,col3 varchar2(30)
5 ,col4 varchar2(30)
6 ,col5 varchar2(30)
7 );
Table created.
SQL> insert into t (col5) values ('adsdf,fgrty,erfth,oiunth,okujt');
1 row created.
SQL> insert into t (col5) values ('x,y');
1 row created.
SQL> insert into t (col5) values ('a,b,c,d');
1 row created.
SQL> select * from t;
COL1 COL2 COL3 COL4 COL5
------------------------------ ------------------------------ ------------------------------ ------------------------------ ------------------------------
adsdf,fgrty,erfth,oiunth,okujt
x,y
a,b,c,d
3 rows selected.
SQL>
SQL> merge into t a
2 using ( with t1 as ( select col5||',' col5
3 from t
4 )
5 select substr(col5, 1, instr(col5, ',', 1, 1)-1) col1
6 , substr(col5, instr(col5, ',', 1, 1)+1, instr(col5, ',', 1, 2)- instr(col5, ',', 1, 1)-1) col2
7 , substr(col5, instr(col5, ',', 1, 2)+1, instr(col5, ',', 1, 3)- instr(col5, ',', 1, 2)-1) col3
8 , substr(col5, instr(col5, ',', 1, 3)+1, instr(col5, ',', 1, 4)- instr(col5, ',', 1, 3)-1) col4
9 , rtrim(col5, ',') col5
10 from t1
11 ) b
12 on ( a.col5 = b.col5 )
13 when matched then update set a.col1 = b.col1
14 , a.col2 = b.col2
15 , a.col3 = b.col3
16 , a.col4 = b.col4
17 when not matched then insert (a.col1) values (null);
3 rows merged.
SQL> select * from t;
COL1 COL2 COL3 COL4 COL5
------------------------------ ------------------------------ ------------------------------ ------------------------------ ------------------------------
adsdf fgrty erfth oiunth adsdf,fgrty,erfth,oiunth,okujt
x y x,y
a b c d a,b,c,d
3 rows selected.
SQL>
Assuming you're on 9i...
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Try something like this:
POS1: = INSTR (cadena, idntificador, 1, 1);
POS2: = INSTR (cadena, idntificador, 1, 2);ID: = SUBSTR (cadena, 1, pos1 - 1);
description1: = SUBSTR (cadena, pos1 + 1, (pos2 - pos1)-1);
Description2: = SUBSTR (cadena, pos2 + 1);where pos1 and pos2 are numbers.
Rather than use UTL_FILE, consider creating an external table. You won't have to write any PL/SQL, and this means that you won't be tempted to write a bad article of EXCEPTION.
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Is it to extract data from a database and insert it into a session variable?
$_SESSION ['Stud_FirstName'] = $row_rs_Login ["Stud_FirstName"];
because it is not work. I swear to you that the more I learn, the less I know.
What to do to change?
Thank you!
Yes. However, the recordset must exist before you can assign value to another variable. The last line of code that creates a recordset object looks like this:
$totalRows_Recordset1 = mysql_num_rows($Recordset1);
If you attempt to create the variable session before this line, as you are, I suspect, is not really surprising that it does not work.
Even if you don't want to write all the code yourself, you must understand the code that Dreamweaver is written for you. Otherwise you will be constantly bumping your head on the keyboard. A PHP script is executed from top to bottom, and the flow of the script is controlled by loops and conditional statements. Get your head around these concepts, and you can find customizing Dreamweaver code much easier.
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