RAC & Failsafe :: Define DB Connection URL For Two Different SID Names In Single URL?
Apr 3, 2012
As you see in the following MY_DB_URL there are two hosts for one SID. This is works perfectly for oracle driver. When one of them is gone down, connection establishes with the other.
MY_DB_URL = jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=xx.xx.104.18)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=xx.xx.104.19)(PORT= 1521))(FAILOVER=true)(LOAD_BALANCE=false)(CONNECT_DATA=(SERVER=DEDICATED)(SID=SIDNAME_1)))
But i have a problem. Our partner uses Golden Gate product, and they said that they must install two different oracle with two different SID names. (For Example one of them is SIDNAME_1 the other is SIDNAME_2) So i can't use this URL in my application.
Is there a way to define a DB connection URL for two different SID names in a single URL?
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Mar 30, 2005
The problem i mentioned in my last posting "CRS installation/PRIF-10: failed to initialize the cluster registry" was due to the fact i was using Redhat Linux 9 that seems to have some missing packages. I installed White Box RH 3 and everything worked fine.
if it's possible to connect to a 10g RAC database using the jdbc java thin client. the java thin client requires an ip, and database sid. I am running a two node cluster and i have two ip's and a service name that uses TAF option.
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Oct 20, 2010
2 Database.
TP1 Database - Oracle RAC 11g (2 Node)
TP2 database - Single Instance
Is it possible to migrate from RAC to Non-RAC(Single Instance)?
Our requirement is, 3 Oracle Schemas@TP1(having DW data) we need to move it to TP2 Database.
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Dec 5, 2012
I have implemented Rac One node with two machine(dbtest01,dbtest02) in 11.2.0.3 Redhat 5.3 one for online another one for offline. i have created TAF also.
dbtest01 is online and create one query
DECLARE
i number(36):=1;
begin
while(i<10000000)
loop
dbms_output.put_line(i);
i:=i+1;
end loop;
end;
i executed above query for test and i made relocate database using srvctl utility to dbtest02 machine.
session is relocated successfully with new session id...above query getting stop in 25000 itself. i want to make it continue that process..also i tried to find Omotion utility in all the path.. couldn't find it... where will it be.. i want to relocate all the session without losing work.
from application i am getting disconnect after relocation.. application server need to restart to get work again...
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Oct 8, 2012
A DB server (Oracle 11g) on Linux will support a Web Application Server (Java based) for hosting a public web site.For sending multiple INSERT statements over from the Java Server to Oracle Server, I have two ways to do it:
1) Wrap those insert statements together and send it over with one connection to Oracle
2) Send each insert statement separately to Oracle. As the result, multiple insert statements are sent and accordingly multiple connections to Oracle are needed.
Advantage of option 1 is just using one Connection. Disadvantages are that Oracle will then need to parse the statement string into multiple separate insert statements, and then loop through them to execute each. This may be costly in CPU sense.
While the option 2 may have quicker execute of each insert statement, but will need to create multiple connections.If the number of users is known and stable (such as intranet), I would prefer option 1; while for the internet there could hundreds concurrent users at the peak, I lean towards the option 2.
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Jul 7, 2010
I have 20 tables. In all 20 tables, some of column names are same and some are different. I need to find all column names in all 20 tables that have same names.
create table t1 (
col1 varchar2(10),
col2 varchar2(10));
create table t2 (
col1 varchar2(10),
col3 varchar2(10));
create table t3 (
col1 varchar2(10));
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Jan 24, 2011
We have oracle database 10g(10.2.0.4) running on AIX 5.1. we have installed 2-node RAC on another server AIX 6.1 . Now we want to migrate our single node database to new 2-node rac environment. how we can move/migrate/cluster-aware our single node database to 2-node rac?
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Sep 13, 2012
I would like get more details about single node RAC.. What is single Node RAC?..
1). just configure only one server instead of two node... same RAC installation.. cluster installation and shared disk configuration in single server itself.. in future we can add node to this ...
2). in 11gR2 having new feature Single Node RAC.. Multiple instances running on same node and configure using Cluster...
is there any advantage using single node rac(other than online upgrade to full RAC).
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Jun 5, 2012
set serveroutput on
set verify off
declare
define t1='111';
begin
dbms_output.put_line(t1);
end;
/
define t1='111';
*
ERROR at line 2:
ORA-06550: line 2, column 10:
PLS-00103: Encountered the symbol "=" when expecting one of the following:
:= . ( @ % ; not null range default character
The symbol ":= was inserted before "=" to continue.
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Apr 2, 2013
What is the difference between these two variables and their usage?
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Aug 29, 2010
Is it possible to define a cursor using dynamic sql. Reason being is, I want to fetch data from 4 diffrent tables but dont want 4 diffrent cursors for this purpose.
I have a procedure that takes an in parameter . Cursor is declared in this procedure. Again is there a way to use dynamic sql so that this cursor declared in procedure uses all 4 table one at a time i.e cursor c1 is select * from table_name(I want this table name to be updated every time with new table name).
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Aug 12, 2010
I want to define global variable in oracle form 6i....so this variable may i used anywhere in project...but i don't know where exactly global variable defined?
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Jan 25, 2011
Can we able to declare a user define exception name as per defined exception name?Ex: we have predefined exception called :"NO_DATA_FOUND "
Now in my PL/SQL block can i able to declare "NO_DATA_FOUND" like
Begin
no_data_found exception;
//statements
raise no_data_found;
end
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Jul 25, 2012
In my sql*plus when i am writing the command ed .It was showing the error as \
SQL> ed
SP2-0110: Cannot create save file "afiedt.buf"
i tried to define the editor by using the command define_editor=notepad;
But still my problem was not solved.
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Oct 14, 2010
can we use user define value (how to use '&') in nested function of a query ?
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Mar 16, 2013
Is there a way to define a SELECT clause once and reuse it in many other queries?
I have many procedures with same SELECT statement and I'm trying to find a way to not have to write out the SELECT clause in every function or procedure. Same question applies to FROM, WHERE, etc clauses.
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Jul 17, 2013
I m trying to give table name as parameter to this function. It is compiling properly.But when an anonymous block is created to call this table value, it has to be fetched into a variable of Rowtype of this inputted table. So I am not able to create any ROWTYPE variable for this table dynamically.
//Function
create or replace function instant_tabula(tabula in varchar) return sys_refcursor
as
cur sys_refcursor;
str varchar2(20000);
begin
str := 'select * from ' || tabula;
open cur for str;
return cur;
end;
[code]....
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Sep 1, 2010
Three databases: A, R1, R2. Database A is local and the other two databases are remote. Database A has one db link to each remote database (dblinkR1 and dblinkR2).
In some of my queries I need to get data from the remote databases, but the remote database to use depends on the application user, so, I would like to dynamically use one of the database links.
Something like this:
1 � user logs into the application;
2 � based on the user credentials the application defines the db link to use;
3 � query data using the defined db link.
(for example)
SELECT a.col1, a.col2 FROM table_A@dyndblink a ORDER BY a.col1;
@dyndblink would be a "pointer" to dblinkR1 or dblinkR1.
Is there a way to dynamically define the database link to use (at a session level)?
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Jan 24, 2013
how can i define the following condition in query definitions tab to define query condition for the value which is linked from previous tab/report ,:P2_SR_ BUSINESS_UNIT is the Item which are getting value from another report Value.
BUSINESS_UNIT=DECODE(:P2_SR_BUSINESS_UNIT,'BS&I','Business Sales And Information','WS','Whole Sale')
I am new in apex and havent had any chance to create a simple report.Version Application Express 4.1.1.00.23
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Jun 2, 2010
There are several stages for sql processing in 10g2 database concept document.The following stages are necessary for each type of statement processing:
■ Stage 1: Create a Cursor
■ Stage 2: Parse the Statement
■ Stage 5: Bind Any Variables
■ Stage 7: Run the Statement
■ Stage 9: Close the Cursor
Optionally, you can include another stage:
■ Stage 6: Parallelize the Statement
Queries (SELECTs) require several additional stages, as shown in Figure 241:
■ Stage 3: Describe Results of a Query
■ Stage 4: Define Output of a Query
■ Stage 8: Fetch Rows of a Query
Stage 3: Describe Results of a Query The describe stage is necessary only if the characteristics of a query's result are not known; for example, when a query is entered interactively by a user. In this case, the describe stage determines the characteristics (datatypes, lengths, and names) of a query's result.
Stage 4: Define Output of a Query In the define stage for queries, you specify the location, size, and datatype of variables defined to receive each fetched value. These variables are called define variables. Oracle performs datatype conversion if necessary.
I still don't understand what's Stage 3: Describe Results of a Query and Stage 4: Define Output of a Query.
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Feb 7, 2013
according to article "Installing Netbackup for Oracle agent on Unix". URL.... Shut Down all oracle instances on this client. The reason: sometimes Oracle will take a shared library (such as ours) and place it into its shared memory spaceMy question is how I can control existence shared library in memory space to define the real need of Shuting down of all oracle instances ? I'm usung 11.2.0.3
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Nov 21, 2012
I have an script.sql that receives as a parameter an string.
example:
@C:/myscript.sql "o'connor"
user_account_value varchar2(120) := '&1';
EXECUTE IMMEDIATE "Select * from Table where column = :1 " USING user_account_value I am not sure how to deal with string that contains single quotes.
If the parameter were passed as : "o''connor" this will work
If the parameter is pass as: "o'connor" this will not work.
so my question is what options do I have to deal with dynamic queries and single quotes.
I tried replacing replace(myParameter,'''',''''''); but not working well.
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Mar 24, 2011
FRM-40501: ORACLE error: unable to reserve record for update or delete.
ORA-24374: define not done before fetch or execute and fetch
My master-detail form has single canvas. For both blocks, master and detail, two tables joined together in each. One table to be updated, second table has some info for reference (query only).
I am getting these errors when in detail block the item from LOV is selected for existing record. This does not happen for new record inserted in detail block.
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Dec 2, 2012
I have a tmp table with 6 cols, and data to be inserted is from two other tables. My problem is there the cols of the table are
sid varchar2(10),
cob_dt varchar2(10),
deal_id varchar2(10),
new_val varchar2(10),
old_val varchar2(30),
amend_col v archar2(50),
i have return a proc
create or replace
[Code]...
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Oct 5, 2011
this is my code
DECLARE
V1 VARCHAR2(100);
V2 VARCHAR2(100);
V3 VARCHAR2(200);
BEGIN
[code]......
if i want to dynamically enter the three to four names then i want the count of those names .
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Jul 21, 2011
when we decribe one table structure, it shows the column name as below:
DUKEDMTS03DB01:SYS@TODS1> desc uet_rep.ECM_MAINTENANCE
Name Null? Type
----------------------------------------------------- -------- ------------------------------------
C1 NOT NULL VARCHAR2(15)
C2 VARCHAR2(254)
C3 NOT NULL NUMBER(15)
C4 VARCHAR2(254)
C5 NOT NULL VARCHAR2(254)
C6 NOT NULL NUMBER(15)
C7 NOT NULL NUMBER(15)
C8 NOT NULL VARCHAR2(254)
[Code]...
But, till yday it was showing the orignal column name..
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May 2, 2013
I am trying to build an array that contains known column names, 63 columns in all.The idea is to search backwards from 63 down to say 10 to find the first non-blank column.
Then using a loop with the known number of lines print from 1 to last non-blank column.The problem is that it only shows the column names and not the values of the columns.So I am getting 63 lines every time, instead of 20, 30, 40 or however how many fields actually have something.
Here is my
declare
to_num number;
field_name varchar2(15);
[code]....
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Jul 17, 2013
NAME package
---------- --------------
Anand basic Anand pascal Juliana cobol Kamala dbase Mary oracle Mary c Partick c++ Qadir assembly Qadir c Ramesh dbase Remitha c Remitha assembly Revathi pascal Revathi basic
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Dec 28, 2011
I have a problem with a query I'm trying to run. I need to match two columns containing names, first column (NAME1) contains only the surname and the second column (NAME2) contains a surname and initials, with the initials turning up on either side of the surname.
Example:
NAME1: 'Bush', 'Thomas', 'Cook', 'Smith'
NAME2: 'Bush, B.B.', 'Thomas,C.' 'Cook', 'A.A. Smith'
Basically the code I'm trying only turns up complete matches and not partials. what I'm doing wrong or how I can improve it?
CODEselect *
from TEST
where NAME1 like ('%'||NAME2||'%');
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Nov 29, 2010
I need to display dynamically a bunch of categories and I need the SQL algorithm to determine their size and names.
So, I have a table with one column and a variable number of records and I need to display them in GUI in pages, displaying also the page name which should be something like short name for first item to short name of last item in category.
Maximum items per page in 10 but I don't want to simply display blocks of 10 records. If the name of the 8th item starts with B and the name of the 9th item starts with C I want the first page to contain only the first 8 records. Minimum accepted items per page is 8, maximum is 10. The split should be based on the first 2 characters. Page name should be something like: first 4 chars of first item in category - first 4 chars of the last item in category.
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