PL/SQL :: How To Perform A Pattern Check - Regular Expression
Oct 16, 2012
Is there a way to perform a pattern check on a value ?
For example: 654321HD9
The pattern is 6 numbers, followed by 2 letters, followed by 1 number. The data type for the attribute is a string.
Examples of right or wrong
654321HD9 - correct value
654321HD - wrong value
654321111 - wrong value
HD1111111 - wong value
The pattern has to be as i mentioned above (6 number, 2 letters, 1 number) otherwise its wrong. My pattern does not cover all cases.
select REGEXP_SUBSTR('654321HD9', '[0-9]+[A-Za-z]+[0-9]+') from dual;
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Nov 18, 2013
I would like to use the REGEX_LIKE to check a number with up to two digits and at least one decimal point: Ex.10.11.1112 This is what I have so far.
if regexp_like(v_expr, '^(d{0,2})+(.[0-9]{1})?$') t
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Sep 26, 2012
I am attempting to perform regular updates on several Oracle tables. The scripts performing the updates are scheduled to run every two minutes, get a value and update the table with that value.
The value doesn't always change but the scripts will still attempt to perform an update.
The same script is part of 7 objects, all of them are scheduled to run at the same time. They update the same table but never the same row.Even though the script is mostly the same on the 7 objects, they run completely independently of each other. The first object will usually perform the update without any problems but when it comes to the second object the script will time out.
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Apr 13, 2013
What is the use of Regular Expression?
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Jan 21, 2011
I have a following table,
CREATE TABLE checkdata
( col1 VARCHAR2(2000)
);
INSERT
INTO checkdata VALUES
[code]......
I need output as ,
INT8144925446-20110118T123723Z
INT8144925448-20110118T123730Z
How do i use Substr and Regular expression here ?
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Jun 6, 2012
Sample Data:
SELECT 'A/BCD/CCE/DFFFF' test from dual
Expected Output:
SELECT 'A' A,
'BCD' B,
'CCE' C,
'DFFFF' D
FROM DUAL;
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Nov 8, 2012
I'm trying to match all sentences that contain words starting with given search tokens at least once. For example: if the given search token words are one and two then only sentences like "one plus one is two" should match. And should not match sentences like "one plus three is four". I was able to come up with this but I need a AND condition which I'm unable to get it right.
select count(*) from dual where regexp_like('one plus one is two', '(^|s)one|three', 'i');
Currently this gives a count of 1. But needs to give a count of 0 when the regexp is fixed.
search words : one two
one is less than two -> match
two is greater than one -> match
onetwo is union of two numbers -> match
onetwo is union of 2 numbers -> not a match as 'two' is not at the beginning of a word
one is less than three -> not a match as two is not present.
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Apr 9, 2013
Can we use regular expression to eliminate all characters other than -
A to Z
0 to 9
Special characters like - &,%,~,@,#,$,^,*,_,+,=,,/,<,>
Example
String - TEST@#_~````}{!!!12311HELLO
Expected result - TEST@#_~12311HELLO
how we can use regular expression to achieve this result.
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Jul 3, 2012
I have a Identifier column with start and stop dates along with description .
Two dates are separated by '-'. But the position of that character(-) is not constant always. Depending on the instr function I am able to divide the start and stop dates. But I am getting the performance problem because of huge data
I think the same logic will be implemented by regular expression also . How to write the equivalent logic by using regular expressions
create table REG_EXP_TEST
(
TRANS_ID NUMBER(10),
TRANS_IDENTIFIER VARCHAR2(250)
) ;
insert into REG_EXP_TEST
(TRANS_ID, TRANS_IDENTIFIER)
values
[code].......
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Jul 24, 2012
Regular Expression in oracle??Especially the use of this in real time scenario.
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Nov 6, 2013
, My HTML string is like below. select '<CityName>RICHMOND</CityName> <StateCd>ABCD CDE <StateCd/><CtryCd>CAN</CtryCd><CtrySubDivCd>BC</CtrySubDivCd>' Str from dual Desired Output is<CityName>RICHMOND</CityName><StateCd>ABCD CDE <StateCd/><CtryCd>CAN</CtryCd><CtrySubDivCd>BC</CtrySubDivCd> i.e.
want to remove those spaces from tag value area having only spaces otherwise leave as it is.implement the same using Regular expression.
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Apr 19, 2010
I am trying to write a pl/sql script where i need to check pattern matching numbers.My database is oracle 10g and i will put this logic in a procedure.i will pass no of tel_no to get.
if the no is 3 then i need 2072860126, 2072860127 and 2072860128(i.e all 3 in sequence)
if 2 then 2072860126, 2072860127. as such..the selected nos must be in sequence.
A query returns list od tel nos. in that tel i need to choose which staisfy my criteria.
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Oct 14, 2013
I would like to write a select that would return all places in DB that are commiting transaction.
E.g. package for testing:
CREATE OR REPLACE PACKAGE test.TEST_COMMIT AS
PROCEDURE THE_ONLY_COMMIT_IN_DB ;
END TEST_COMMIT;--not a match
CREATE OR REPLACE PACKAGE BODY test.TEST_COMMIT AS
[code]....
The select should return 4 rows with --ok.
SELECT *
FROM ALL_SOURCE ASO
WHERE
REGEXP_LIKE(ASO.TEXT,'commit(s*);','i' )
AND name = 'TEST_COMMIT'
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Mar 15, 2012
I need to search a specific pattern from a source code. In word, I need to check whether "getCode" has been called or not, for all the string inside double-quote("). Following are sample code lines -
1.->if(val==23){ month_desc = "a sample data"; }
2.->if(val==23){ month_desc = getCode("a sample data"); }
3.->if(val==23){ month_desc = "a " + getCode("sample data"); }
4.->if(val==23){ month_desc = getCode("sample data"); var2="sample data2";}
Now, expression should be such that it will return true during check for 1, 3 and 4, although, for 3 & 4 getCode has been called for part of the String.
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Oct 6, 2011
I want to extract the data from the Clob field. I have the following table,create table test123(col1 char(24), col2 clob); And following data,
Insert into test123 (col1,col2) values ('ABCDE','<?xml version="1.0" encoding="UTF-8"?>
<Attributes>
<Attribute DataType="Text-40" DisplayName="DropDirectory"
IsNotDeletable="Y" Modifiable="Y" Name="DropDirectory" Value="${Dir1}"/>
<Attribute DataType="Text-40" DisplayName="PrinterAlias"
IsNotDeletable="Y" Modifiable="Y" Name="PrinterAlias" Value="\Printer3Printer4"/>
<Attribute DataType="Text-40" DisplayName="PrintServerHostName"
IsNotDeletable="Y" Modifiable="Y" Name="PrintServerHostName" Value=""/>
<Attribute DataType="Count" DisplayName="PrintServerPort"
IsNotDeletable="Y" Modifiable="Y" Name="PrintServerPort" Value="2723"/>
</Attributes>');
[code]....
The data will be available like this only, The same XML tag is used everywhere.
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Jul 2, 2013
I am using 11.2.0.3.0 version of oracle. I have not worked on regular expressions. During working on sql injection, I got set of below patterns which is feeded to some JAVA regx classes or utilityto restrict selective Request, based on patterns.below patterns and the characters which will be restricted by this pattern matching utility.
Given below are 3- patterns:
(.*?[sd)'])(?:AND|OR)(?=[s-+(']|.?d)(s*[-+(]?s*(?:[^s!<>=]+?|'.*?')[s)]*(?:s*(?:(?:[-+/*(.]||s*|)s*)+(?:[^s!<>=]+?|'.*?')[s)]*)*s*)(?: <s*>|>s*=|<s*=|!s*=|=|>|<)(.*)
(.*?[sd)'])(?:AND|OR)(?=[s-+(']|.?d)(s*[-+(]?s*(?:[^s]+?|'.*?')[s)]*(?:s*(?:(?:[-+/*(.]||s*|)s*)+(?:[^s]+?|'.*?')[ s)]*)*s*)(? <=[s)']|d.?)(?:LIKE|IN|BETWEEN)([s-+('].*)
.*[sd)'](?:AND|OR)[(+-s]*(?:'.*?'|.?d[ds-+/*().]*)[)s]*(?:<s*>|>s*=|<s*=|!s*=|=|>|<|LIKE|IN|BETWEEN)[(+-s]*(?:(+s*SELECT)?[(+-s]*(?:'.*?'|.?d[ds-+/*().]*).*
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Dec 22, 2010
ved>create table test900 ( a number, b number);
Table created.
ved>insert into test900 values( 9,'');
1 row created.
ved>insert into test900 values( 10,null );
1 row created.
ved>select * from test900;
A B
---------- ----------
9
10
ved>select nvl(length(b),0) from test900;
[code]....
ERROR at line 1:
ORA-01790: expression must have same datatype as corresponding expression..Why the above sql ( case 2 ) gives error?
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Mar 21, 2011
Is there a method or a tool out there that can do a search through an Oracle Schema to find objects ( tables, fields, stored procedures, etc) containing a specified character pattern ? For example : I would like to return all of the tables that contain fields containing the character string "ABC"
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Jun 20, 2012
I want to search for a pattern and replace with a string. I can easily achieve the same in oracle 10g with REGEXP_REPLACE , I want to get the similar solution in 9i.
Eg.
I have to search for a string pattern 1234 5678 9012 6736 , I want to replace the same with XXXX XXXX XXXX XXXX.
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Jan 22, 2010
I have a requirement which is as follows.A file will be downloaded into a server every day at 2 A.M. The name of the file would be 'BB90170_sysdate_D'. I need to refer to this file everyday since everyday the data changes.How do i identify which is the latest file in the server folder using Forms 6i code. Means while i have tried this
'' in_file :=Text_IO.Fopen ('C:TIESPartprocurementBB90170_'||part_date,'r')". How to use pattern matching in Text_io.fopen. Part_date in refers to sysdate without Timestamp.
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Oct 15, 2010
I have a date column, where the date values are not stored in a specific pattern. following are the sample value from the column.
8/10/10 12:00 AM
9/22/2010 1:00AM
01/01/2001
9/1/10 6:00 PM
9/22/2009 1:00AM
i want to convert this to a standard format, 'dd/mm'yyyy'.
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Feb 4, 2012
The code which I am working on consists of an incoming dynamic string which be in the form of binary digits. The max size of the string will be 12 digits. For example, the string can be '111011000001', '000000000000', '111111011111', etc.
I need to find the number of occurences of '111' in the incoming string. Say in the 1st example, result will be 1, in the 2nd example result will be 0, and in the third example, the result will be 3.
I have been trying to capture the string length and replacing the variables '111' to find the number of occurences, but it isn't giving me the result that I want. This is what I have tried
SQL> conn hr/hr
Connected.
SQL> show user
USER is "HR"
[Code]....
I searched the forum and found a similar topic, and following that guideline, I even tried dividing the string with the length of the pattern. It works in some scenarios (the first and second examples mentioned below), while it fails in some scenarios (third example mentioned below)
SQL> select (length('11101110111') - length(replace('11101110111','111','')))/length('111') as occurences from dual;
OCCURENCES
----------
3
SQL> select (length('110111110111') - length(replace('110111110111','111','')))/length('111') as occurences from dual;
OCCURENCES
----------
2
SQL> select (length('111111111111') - length(replace('111111111111','111','')))/length('111') as occurences from dual;
OCCURENCES
----------
SQL>
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Jul 30, 2011
I want to put one check box to check all the check boxes.how can i do this?
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Nov 5, 2011
I have a table(PSUSEROBJTYPE) with a long field(PTCUSTFORMAT) containing a row value value in the form:
#1|0|0|0|0|#2|1|0|0|1|#3|1|0|0|0|#4|0|0|0|0
Here, I want to update the above field value to a value in the form:
#2|0|0|0|0|#3|1|0|0|1|#4|1|0|0|0|#5|0|0|0|0
This is nothing but finding each occurrence of (#n) in the above string and replacing it by (#n+1). (i.e #1 is replaced by #2,#2 is replaced by #3).
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Apr 22, 2009
How to use a table type variable with a regular query? For example, in my PL/SQL proc I have a table of employee names.
v_emp_tbl; --contains 'John','Sally','Ted'
Then I want to get names in a table called tbl_employees which are not in the pl/sql table. So if the table contains 'John','Sally','Ted',and 'Don' then I want to see 'Don'.
Not sure how to do this. Essentially I want something like:
Select emp_name into v_single_emp
from tbl_employees where emp_name NOT IN v_emp_tbl;
I know I can loop through the pl/sql table but I wanted to see if there is some other way.
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Jul 16, 2012
I am needing to select GUIDS from a table and for this, I need the Regular Expression. My Perl is not good and not good Regular Expression. My database is Oracle 11.2.0.2.0 and the Operating System of the Machine is Linux (Oracle Version 6).
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Mar 10, 2012
I need to search a pattern backwards in a CLOB field.Function DBMS_LOB.instr does not work with '-1' offset (where to start the search) as instr does.
Parameters: instr(text_to_be_searched, pattern, offset, nth)
Example: I want to search 'Hello world' for the first instance of the letter 'o' starting from the end, backwards.As you can see, result for DBMS_LOB.instr is null when entered -1 for offset.
select
DBMS_LOB.instr('Hello world','o',-1,1) lob_i,
instr('Hello world','o',-1,1) std_i
from dual;
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Mar 2, 2011
I have this remote database A and database B. DB A has 10 views and DB B has 10 tables. I have to pull out data from views of DB A and load into tables of DB B at regular intervals. How do I do this job?
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May 18, 2010
I want to maintain the logical backup of all the application tables At regular intervals. Which option would i use?
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Apr 11, 2007
I'm trying to perform a SELECT INTO in a SQL*Plus script.the script i'm working towards to, looks something like this;
set term on
set echo off
set serveroutput off
set verify off
ACCEPT ReportName PROMPT 'Please enter a report name; '
PROMPT
PROMPT retrieving current settings for &ReportName:
select STARTDATE, ENDDATE, SUFFIX
into pStart, pEnd, pSuffix
from MyTable
where NAME = '&ReportName';
[code]....
I'm basically trying to perform a select into based in user input and then put the retrieved data back to the console with a prompt. Is this possible within a sql script running on SQL*Plus?
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