Using PL/SQL Table With Regular Query
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 19, 2010
There is a requirement to make a table data in a database (eg: HR database) available in another database (eg: EMP database), instead of accessing it using database link. In EMP database(where data needs to be cloned), data will only be queried and no write operation will be done. Data in remote database (eg: HR DATABASE) will be occassionally fully truncated and reinserted. The plan is to do a similar truncate and reinsert of data (from HR database) into EMP database monthly once using dbms scheduler job. So basically data in just one table needs to be cloned in another database.
Question: For this situation, is a regular table or Materialized view the right choice to clone the table in EMP database and why? The table in HR database (remote database) is not very big.
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Jan 27, 2011
DBMS_STATS.CREATE_STATS_TABLE
DBMS_STATS.EXPORT_SCHEMA_STATS
DBMS_STATS.GATHER_TABLE_STATS
I have used the above to get a copy of schema stats and gather new stats for specific tables into a STATS TABLE in my personal schema. What I want to do now is use this stats table to generate plans for queries where I believe stats are off. Is it even possible? To be clear, I do not want to import stats because this replaces the stats currently there. I just want to point the CBO to my stats table for generating plans.
there was a session parameter I could set to tell oracle to use my stats table when generating plans, or an explain plan clause I could use or a DBMS_XPLAN paramter I could provide that would tell these tools to use my stats table when generating a plan, or even some way to tell autotrace. But I have found none of this.
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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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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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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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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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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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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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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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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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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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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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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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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 14, 2013
code to extract email id (full email id) from a string/text using Oracle Regular Expressions.
Example -
"This is my String with email abc.efg@hij.com to test" O/p - abc.efg@hij.com
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Apr 5, 2011
how can we load a Flat file into a Database At Regular Interval Time.
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Jun 19, 2012
I have the following four tables with the following structures Table A
ColA1 ColA2 ColA3 ColA4 ColA5 AA 100 CC DD EE
Table B
ColB1 ColB2 ColB3 ColB4 ColB5 AA 100 40452 A9 CDE
when these two tables were joined like the following:
Select colA1,ColA2, ColA3, ColA4, ColB3,ColB4, ColB5 from table A Left outer join (select ColB3, ColB4, ColB5 from table B where colB3 = (select max(colB3) from table B ) on (colA1 = colB1 and ColA2 = col B2)
Now i have to join the next table C with table B
Table C structure is
ColD1 ColD2 ColD3 Desc1 A9 Executive Desc1 A7 Engineer
I have the common column such as ColD2 and colB4 to get the Col D3
how do i join the existing query + join between table b and table c?
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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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Nov 8, 2013
I have an instruction like this in a pluggin: begin ...
htp.p('<font size="3" color="FireBrick">
Cannot find? Search on </font>' || '<
[URL]....
<font size="4" color="FireBrick"><b>Google</b></a>'); ...
end;
It displys the Google page in another window. How can size the wiindow? For example adding width=200, height=100 to the href tag doesn't work.... Do I need to use JavaSvript?If yes, any example?.
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Jun 8, 2012
I use windows 2003 server, oracle 10.2.0.4.0.My question is related to maintaing a standby database
1. Do we need to take RMAN full backup of standby database on a regular basis? At the moment I dont take backups of standby database.
2. I have FRA on standby database. The archivelogs from primary go to FRA on standby. I delete my archivelogs as follows:
DELETE ARCHIVELOG ALL COMPLETED BEFORE 'SYSDATE-3';
Though the archivelogs are delete there are still empty folders of archivelogs that are not deleted. How to get rid of them automatically.
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Oct 29, 2013
About the concept of quorum failgroup ORACLE says:QUORUM disks, or disks in quorum failure groups, cannot contain any database files,the Oracle Cluster Registry (OCR), or dynamic volumes. However, QUORUM diskscan contain the voting file for Cluster Synchronization Services (CSS). Oracle ASMuses quorum disks or disks in quorum failure groups for voting files wheneverpossible.
To sum up, i think the different between a regular failgroup and a quorum failgroup is a quorum failgroup can only contain vote files and a regular one can contains multiple kinds of files.So i didn't see any advantage to place voting files on a quorum failgroup than on a regular one. Why Oracle introduce the concept of quorum failgroup?
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Apr 15, 2013
I am new in RAC scenario though i have some system to look after. I want to know, like single instance there is alert log,trace log where we should investigate to check if there is any problem. For RAC system which are the logs that i can find the monitor the incident or regular health checkup under grid and oracle user?
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Jan 23, 2013
I have got a procedure that successfully creates an oracle external table and populates it with the contents of a file. This works fine until I have a situation where one of the fields is a VARCHAR2(2) and I try to insert say, a 5 character value. When this happens the record in question does not get populated in the external table (and rightly so), but I could do with working out if there is a discrepancy in the number of records in the file and the number of records that actually make it into the table so I could inform the user that there is a problem.
I have attached the code that creates the external table and populates it.
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Jul 22, 2010
I have one table which has 90 columns all has varchar2 datatype except one Column[primary key (Number)]. In this Table we have 1000 records, I want to fetch those records from Table which has value in all 90 columns means there is no null value in any column.
I know simple method Like this :-
column_name1 IS NOT NULL AND Column_name2 IS NOT NULL.
Like this we can write IS NOT NULL condition for all column.Is there any other way to write this Query because it makes Query very longer and it is very tedious job to write this Condition for all Columns.
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Apr 12, 2012
I do a query like this one:
Select value (tab1).worker
from workdescription_Tab wdt, table(wdt.worksOn) tab1
Result is a column - each line includes a ref table with different number of entries.
If I could select this column directly, i would print out the entries of each ref table like this:
Select j.job, cursor
( select (w).lastname
from table (j.workers) w)
from job_tab j;
or
Select j.job, value(w).lastname
from job_tab j, table(j.workers) w;
But how can i do this with the query result above? I am not able to manage it...
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