SQL & PL/SQL :: Split String Function For Large Number Of Records?
Aug 6, 2010
I have created a function that is used for splitting a comma separated string & give the output in tabular form.here is the function
Here I have used CLOB as my input string will be huge(greater than max limit of varchar2)
CREATE OR REPLACE TYPE SPLIT_TBL_CLOB AS TABLE OF CLOB;
CREATE OR REPLACE FUNCTION CSVTOSTRING_CLOB
(
P_LIST CLOB,
P_DEL VARCHAR2 := ','
) RETURN SPLIT_TBL_CLOB PIPELINED
[code]....
But here I am facing 2 problems.
1. The function is not accepting a large string & I am getting the error
POWER(47.3616, 27.1261) returns: 2.80403309600359E45 which causes "number precision too large" error in my variable which is defined as NUMBER(20,20).
I've tried ROUNDing and TRUNCing the product, but still get the same long output. The only thing that seems to work is SUBSTR.
Is that the ONLY way to deal with this? It seems like there would be a better way or is there another type I should use these super long decimal results?
SQL> SELECT POWER(47.3616, 27.1261) AS Exp_Val 2 FROM dual; EXP_VAL ---------- 2.8040E+45 SQL>
I need to export large number of records from select into the text file. It's about 2milion records.I can do it by PLSQL (see below) where executing of process takes time too much. How to export to text file faster?
I have a string like '9999999;A' one field as numeric & other as char.Now i want to split this string into two values removing the ; delimiter in oracle using for loop.
How do i split a string based on a space. And then create a view with three columns of that split string.
For example if i have a table with Full name as a column how do i split that string and create a view with firstname, middlename, lastname as column names with the split string as data.
I am trying to split comma separated string. My table has more than 5 lacks data. I have tried the following SQL but its taking more than 5 minutes. Any Alternative solution to return data quickly ?
SELECT REGEXP_SUBSTR(order_id, '[^,]+', 1, LEVEL) order_id FROM order_detail CONNECT BY REGEXP_SUBSTR(order_id,'[^,]+',1,LEVEL) IS NOT NULL
SELECT REGEXP_SUBSTR(order_id, '[^,]+', 1, LEVEL) order_id FROM order_detail CONNECT BY LEVEL <= LENGTH(order_id) - LENGTH(REPLACE(order_id, ',')) + 1
I'm looking for a way to insert strings larger than 40.000 characters in a CLOB-field without geting the "ORA-01461: can bind a LONG value only for insert into a LONG column".
Something like this:
insert into MyClobTable(ID,Data) values ('101','A string containing more than 40000 characters...')
The problem is that a Java-application concatinates the string from a MSSQL-DB so I don't store the string in my oracle-DB. As far as I'm aware this means I can't chop my string in pieces and use declare to put the pieces in variables, right?
Below is an example I found but I don't think I can apply it on my case, correct?
SQL> CREATE TABLE myClob 2 (id NUMBER PRIMARY KEY, 3 clob_data CLOB);
notes column having 2000 characters max, i want my string output based on 35 characters, ya i need to replace tag after 30 characters in the string.. I need out put as "hi hello how are you doing out there, similar i need to calculate the sting length and have to split it 35+35+35..
This i tried
select substr(note,1,(instr(note, ' ',35)))||' '||substr(note,instr(note, ' ',35),(instr(note, ' ',35)))notes from test
Insert into temp_a values ('1','002.0 AND 002.9'); Insert into temp_a values ('2','729.90 AND 079.99 AND 002.9');
Output :
1 002.0 1 002.9 2 729.90 2 079.99 2 002.9
So, once we get the output, it needs to be joined to another table. I did Google search, but most of them are retuning collections / arrays as output. Not sure how I join the collection with the table.
create or replace function splits ( p_list varchar2, p_del varchar2 ) return split_tbl pipelined is l_idx pls_integer; [code].......
1 product has a price; and can have several appearances. Now we want to know the price not by product but by appearance, for that we'll just dived the amount of the product by the nr of appearances it has. In this case we would like the result to be:
In this query split is a pipe line function to convert row(rows stored with , delimited) as columns like below
for ex for below query SELECT * from TABLE(SPLIT('bbb003,bb004'));
out put is bbb003 bb004
now i have to apply same function on column,column is storing data with ',' separated.and i have tried like but it's throwing missing expression. how i can use this function on entire column from this table.
SELECT * from TABLE(SPLIT(select candidates FROM ibis.cw_uploads_inprogress ));
I have a query that returns 11 Million rows but not all of them can be displayed in SQLDeveloper or DBVisualizer because of limited memory or other type of issues. I need to copy the entire result set to excel for further calculations.
Is there any way that i can select N number of rows out of my actual result set.
For example: a) A result set contains 10 Million rows in total. b) I want to display first 5 Million rows by executing a query c) Then I want to display the remaining 5 Million rows by executing the query again with any parameter changes.
So all I want is to extract the rows of my actual result set in two or more executions, depending on the number of rows.
Consider tables A,B,C,D,E,F. all are having 100000++ records Tables B,C,D are dependent on table A (with foreign key constraint). When I am deleting records from all tables, table B,C,D are taking max 30-40 seconds while table A is taking 30-40 mins. All tables are having indexes.
Method I have used:
1. Created Temp table
2. then deleted all records from B,C,D,E,F for all records in temp table for limit of 500. delete from B where exists (select 1 from temp where b.col1=temp.col1);
3. Why it is taking too much time for deleting records in table A.
Is there any thing that during deleting data from such master table, it is referring to all dependent tables even if dependent data is not present ?
i want to replace 4 digit number in a given string with the same number incremented by 10000.
That mean in the given sting 1201 should be replace by 11201 (Icremented BY 10000).
Input String:
<query><matchAll>true</matchAll><row><columnId>1201</columnId><dataType>31</dataType><op>Like</op><val>North America - Houston</val></row><row><columnId>1212</columnId><dataType>31</dataType><op>!=</op><val>Agreement Date Mismatch</val></row><row><columnId>1212</columnId><dataType>31</dataType><op>!=</op><val>Facility Type Mismatch</val></row><row><columnId>1224</columnId><dataType>31</dataType><op>Like</op><val>y</val></row></query>
Required output :
<query><matchAll>true</matchAll><row><columnId>11201</columnId><dataType>31</dataType><op>Like</op><val>North America - Houston</val></row><row><columnId>11212</columnId><dataType>31</dataType><op>!=</op><val>Agreement Date Mismatch</val></row><row><columnId>11212</columnId><dataType>31</dataType><op>!=</op><val>Facility Type Mismatch</val></row><row><columnId>11224</columnId><dataType>31</dataType><op>Like</op><val>y</val></row></query>
