stored procedure question

Similar Questions

• Question packets and stored procedures

  Been working with Oracle for a month now and I have a question about stored procedures/packages. I created 3 stored procedures and a search function to do some work as follows:
  1 load the initial set of data into a table.
  2. turn to day of the preceding table columns by using a specific search function.
  3. put to update a single column with a value based on grouped subsets of the data in the table.
  
  I divide the latter in separate proceedings to facilitate debugging and validation of each step, but now I want to put them all together and run them sequentially. In my view, there are two ways to do this:
  1. create another stored procedure that will run the three in the right order.
  2 create a package and move all procedures and functions and call each in the right order.
  
  Don't know which approach is preferable, although I'm leaning towards the first option, any actual experience would be appreciated. Thanks in advance!
  
  Dave

  How about option 3:

  3 create a package and move all procedures and functions, and then add an additional procedure in the package that calls each in the correct order and call this procedure.

  PS. only this last procedure must be in the package spec. All others must be put into the body (and can remain hidden for the code outside the package).

  Published by: Toon Koppelaars February 26, 2010 21:07

• Simple question-how to call a stored procedure or function of apex?

  Simple question-how to call a stored procedure or function of apex?
  Thanks advance.
  Doug

  Hi Doug,.
  You can call a procedure or function of apex. It depends on what you want to do with the function or procedure. If you want to retrieve table data in a specific area, you can try something like this-

  The following statement creates the function get_bal on the oe.orders of sample table (PL/SQL is in italics):

  CREATE FUNCTION get_bal (acc_no in NUMBER)
  RETURN NUMBER
  IS acc_bal NUMBER (11.2);
  BEGIN
  SELECT order_total
  IN acc_bal
  Orders
  WHERE customer_id = acc_no;
  Return (acc_bal);
  END;
  /

  The function created in the previous example can be used in a SQL statement. For example:

  SELECT get_bal (165) FROM DUAL;

  GET_BAL (165)
  ------------
  2519

  hope this will help,

  Kind regards

  Pascal M
  http://Tajuddin.whitepagesbd.com

• Stored procedure calendar basic questions

  If I have the following statements in a stored procedure, what happens if a user performs an update, insert, or select this option for the MAIN_TABLE during the procedure (assume that the procedure takes a few seconds)?
  
  MY_PROCEDURE:

  INSERT INTO BACKUP_TABLE (COL1, COL2, ETC.)
  (SELECT COL1, COL2, ETC. FROM MAIN_TABLE WHERE BACKED_UP = 'N');
  
  UPDATE MAIN_TABLE SET BACKED_UP = 'Y' WHERE BACKED_UP = 'N';

  If they do an update/insert, MY_PROCEDURE data will see that update/insert and send it to BACKUP_TABLE? Or it will depend on if this file has been processed yet? Or the update/insert will not persist until the procedure is completed? (I suspect the latter, but it's hard to get the timing right to test it myself)
  
  Would there be problems doing a select on MAIN_TABLE while this process occur?
  
  If there is a reference to how these timing issues are resolved that someone could tell me, that would be great; I can't find anything on mine.

  When all else fails, read the Fine

  http://download.Oracle.com/docs/CD/E11882_01/server.112/e16508/consist.htm#sthref1118

• Question from numbers in the stored procedure

  Hi all

  I have a problem to store numbers in oracle 11 g. I need the numbers without decimals and with decimal in my data table, I see this:

  1.1 (OK)

  1.2000000000000002 (instead of 1.2)

  1.3000000000000003 (instead of 1.3)

  1.4000000000000004 (instead of 1.4)

  1.5000000000000004 (instead of 1.5)

  1.6000000000000005 (instead of 1.6)

  1.7000000000000006 (instead of 1.7)

  1.8000000000000007 (instead of 1.8)

  1.9000000000000008 (instead of 1.9)

  2.000000000000001 (instead of 2.0)

  I am using this cfc:

  < procedure = "myDB.myPackage.updateTableA cfstoredproc" datasource = "mySource" > "

  < cfprocparam value = "" #arguments.myNumberValue # "cfsqltype ="cf_SQL_FLOAT">"

  < / cfstoredproc >

  In oracle, I have the myNumberValue parameter as a number data type.

  I try CF_SQL_DECIMAL and cf_SQL_NUMERIC, it does not pass anything.

  What type of sql are used in my stored procedure?

  Thank you

  Johnny

  I would use CF_SQL_DECIMAL, make sure just that you set the SCALE = "" attribute to dictate the number of decimal places to send. "

• stored procedures, newbie question

  I am at the point with my Web site where I need to think about the optimization of the query and have started looking at stored procedures for the first time.

  1. am I right in thinking the benefit of the execution of stored procedures is that it is a pre-compiled query?

  2. I'm trying to use the query cache as my 'normal' queries go, but is it possible to cache the results of a stored procedure?

  In practice, using 1 & 2 would provide a significant increase in performance.

  Personally, I use it only for large heavy updates or deletions. For example, I have an Oracle package with a bunch of procedures that run when a person completes an order - this process involves many tables, deletions, updates and a relatively simple logic. I think that the ideal candidate for a stored procedure.

  I use CF as an alternative if, for example, I have to repeat a load of complex business logic in a stored procedure that I have already written in a CFC.

  Keep in mind the benefits of a stored procedure - basically precompiled code. Don't forget that if you are using well trained cfqueries with cfqueryparams, execution plan gets compiled to the top in the first round * anyway *, so if you call a stored procedure or run your query really there is no difference.

  And Yes - do not underestimate the additional time it takes for a developer to do everything in the stored procedures rather than ColdFusion, they don't call it rapid development of applications for anything

  Don't forget as well as someone can write a stored procedure to poorly coded as well as they can write a wrong encoded query. At least if the developer has its application in front of him, he can see instantly what he needs of the index and locate errors, you could go years before realizing a person made a mistake inside a stored procedure, as no one can see the code.

  Regarding security Yes - if you really want to limit security then sprocs will do that for you. However in most of the applications I've seen the right developer has the possibility to write a query, as they see fit.

  Once I use stored procedures while I think of it - if you have more than one application that needs to do the same thing: this should * definitely * be a stored procedure.

  Basically, the same rules apply to them as any other aspect of programming; security of the duplication of code, efficiency, ease of maintenance - it's all a matter of their maximum weight and decide what is best.

• Question about handling apostrophe in the stored procedure parameter

  I was wondering how people have dealt with this problem.  In my process I use the operation to execute stored procedure (sp) to write data to a database, and it is by the way the field values to the sp as parameters.  Works fine when everything is normal but as soon as an apostrophe is added in one of the fields, ka-boom.  It breaks .  So I have been messing around with the means to fight against this problem and did not really come wih an appropriate option.  I know that I can go on the form and write a few RegEx and change the single apostrophe double that would work, but I have to write in several events since the form is sent to someone else and I can't have them seeing "clerk"s"instead of"clerk".  Right now I'm writing an xpath statement that would replace the single apostrophe with a double bed with no luck.  I was wondering if anyone else has had this problem and found an easy solution.  Thank you

  Mike

  Why not use the parameterized query option.

  In this way, your settings are replaced by some? and you don't get messed up with the '

  Your select statement would look like: select * from table where column1 =? and column2 =?

  Then you can map the? s in the process variables.

  Jasmine

• SQL stored procedure input and output parameters

  Hello Gang,

  My dead end trying to call a stored procedure in SQL Server 2008 with the LV database tool.

  for purposes of experimentation, I've created a small procedure with an input parameter that returns an integer as return value.  It works describing a query, but all attempts at LV produce an error-2147217900 when executing query VI.  I did find examples of that.

  Sending a bunch of parameters to a stored procedure and checking the value of return seems to be pretty common stuff.

  I'll appreciate any help.

  Thank you

  Roger

  Hi Roger,

  There are a few prerequisites which I will list below. If you have not checked these things, so don't hesitate, as your hiccups can be there.

  Prerequisites:

  1. Ensure that you can read from a table in the database to verify that you can access the database (user permissions) and ensure that your login details are correct. Among other things, make sure that the. DSN switches to the correct database. (See the simple example below, SQL Select.vi)
     
  2. Make sure that your user (if you use SQL authentication) has permissions to run the STORED procedure by running the procedure in SQL Server Management Studio (you seem to have already done this)

  Example by calling a procedure without parameters (attached as SPROC_No_Parameters.vi):

  

  Example by calling a procedure with parameters (attached as SPROC_Parameters.vi):

  

  An article on the execution of stored procedures is here:

  http://digital.NI.com/public.nsf/allkb/07FD130746083E0686257300006326C4

  Don't forget to download the example VI since it includes the cases where you want an output parameter of the procedure rather than a table.

  I tested these against two very simple SPROCs and it worked fine (on SQL Server 2005, but 2008 should be the same).  Stored procedures have been:

  CREATE PROCEDURE [dbo]. [GetContacts]

  AS
  BEGIN
  -SET NOCOUNT ON added to avoid additional results sets from
  -interfering with SELECT statements.
  SET NOCOUNT ON;

  -Controls insert for procedure here
  SELECT * FROM Contacts
  END

  and

  CREATE PROCEDURE [dbo]. [MultiplyAges]
  @param1 INT = 1
  AS
  BEGIN
  -SET NOCOUNT ON added to avoid additional results sets from
  -interfering with SELECT statements.
  SET NOCOUNT ON;

  -Controls insert for procedure here
  SELECT (age * @param1) OF Contacts
  END

  I would like to know if these examples work for you or if you have any other questions.  Don't forget to go through this KB article and articles related to it, they should cover other situations.

  Matt

• Cannot access stored procedure parameters

  Hello

  We are at the point where you try to use a stored procedure from our Java through Toplink code but we seem to have a problem here I couldn't find an answer to. Maybe it's that my Google-Fu is miss you in this case.

  Our problem is thto so that the procedure seems to be cited correctly, we get nothing to Java code. The procedure in question has been tested with the same input parameters of SQLDeveloper and the procedure returns values as it should.

  The procedure signature is

  create or replace PACKAGE FORM_METADATA AS

  PROCEDURE FORM_LIST_GET)

  P_USER_ID IN VARCHAR2,

  P_CHANNEL_NO NUMBER,

  P_START_FROM in NUMBERS, paging

  P_COUNT_TO_RETURN in NUMBERS, paging

  P_GET_TOTAL_COUNT in NUMBER, - if number must total be returned then 1, other wise 0

  P_RESULT_SET ON SYS_REFCURSOR,

  P_TOTAL_COUNT CERTAIN NUMBER);

  end FORM_METADATA;

  
  

  Java code invoking this procedure looks like this:

  County of BigDecimal = new BigDecimal(-1);

  A session = getSession().

  session.setLog (new OutputStreamWriter (System.out));

  session.setLogLevel (SessionLog.FINEST);

  StoredProcedureCall procedureCall = new StoredProcedureCall();

  procedureCall.setProcedureName "(FORM_METADATA. FORM_LIST_GET");

  procedureCall.addNamedArgumentValue ("P_USER_ID", "name of user-1");

  procedureCall.addNamedArgumentValue ("P_CHANNEL_NO", new BigDecimal (1));

  procedureCall.addNamedArgumentValue ("P_START_FROM", new BigDecimal (1));

  procedureCall.addNamedArgumentValue ("P_COUNT_TO_RETURN", new BigDecimal (1000));

  procedureCall.addNamedArgumentValue ("P_GET_TOTAL_COUNT", new BigDecimal (1));

  procedureCall.useNamedCursorOutputAsResultSet ("P_RESULT_SET");

  procedureCall.addNamedOutputArgument ("P_TOTAL_COUNT", "count", BigDecimal.class);

  DataReadQuery dq = new DataReadQuery();

  dq.setCall (procedureCall);

  dq.prepareForExecution ();

  Object result = session.executeQuery (dq);

  System.out.println ("result:" + result);

  System.out.println ("result from StoredProcedreCall:" + procedureCall.getResult ());

  The output we get looks like this:

  [Warning TopLink]: 2015.08.31 16:11:30.781 - failed to get InitialContext for saving of MBean: javax.naming.NoInitialContextException: need to specify the class name in the environment or property of the system, as a cmdlet parameter or in a file of application resources: java.naming.factory.initial

  [Warning TopLink]: 2015.08.31 16:11:30.797 - failed to get InitialContext for saving of MBean: javax.naming.NoInitialContextException: need to specify the class name in the environment or property of the system, as a cmdlet parameter or in a file of application resources: java.naming.factory.initial

  [TopLink info]: 2015.08.31 16:11:31.685 - DatabaseSessionImpl (1827000661) - TopLink, version: Oracle TopLink - 11 g Release 1 (11.1.1.5.0) (Build 110305)

  [TopLink info]: 2015.08.31 16:11:34.147 - DatabaseSessionImpl (1827000661) - dev connection successful

  [TopLink Finest]: 2015.08.31 16:11:34.147 - DatabaseSessionImpl (1827000661) - wire (wire [main, 5, main])-Execute query DataReadQuery()

  [TopLink Finest]: 2015.08.31 16:11:34.163 - DatabaseSessionImpl (1827000661) - wire (wire [main, 5, main])-re-connect to the external connection pool

  [TopLink fine]: 2015.08.31 16:11:34.227 - DatabaseSessionImpl (1827000661) - connection (1635575430) - wire (wire [main, 5, main])-START FORM_METADATA. FORM_LIST_GET (P_USER_ID = >?, P_CHANNEL_NO = >?, P_START_FROM = >?, P_COUNT_TO_RETURN = >?, P_GET_TOTAL_COUNT = >?, P_RESULT_SET = >?, P_TOTAL_COUNT = >?); END;

  link = > [name of user-1, 1, 1, 1000, 1, = > P_RESULT_SET = > P_TOTAL_COUNT]

  [Result:]

  Result of the StoredProcedreCall: null

  Process has finished with exit code 0.

  
  

  I'm pretty sure that our problem is with Java code invoking the procedure, but as I said, we were not able to find the right solution yet. Anyone have a pointer as to where we should begin to look for next?

  Thank you in advance,

  Mika Leino

  One of my colleagues managed to find the reason why the procedure does not seem to return anything. For brevity, I've redacted a couple of settings that we were not used to this forum and we do not believe the reason for the perceived behavior. However, as well as the required parameters these have the value NULL. My colleague seems to try initialize parameters without value and after that the query returned a set of data that was expected.

  Our change of code (in Java) was therefore to spend

  procedureCall.addNamedArgumentValue("P_ORDER_BY", OracleTypes.NULL);
  

  TO

  procedureCall.addNamedArgument("P_ORDER_BY");
  

  Now we're getting data from the cursor, as expected, but the second parameter value still eludes us.

• Logic of tip insert - using a stored procedure?

  Here's my use case:

  • I have a table called TAGS that has two columns: id (number key, primary) and text (string)
  • the table has a constraint of database set that each text must be unique
  • the table also has a fixed sequence back next id available
  • I created an entity of the DB object and its default View object
  • I also created a page where I display a table read-only based on the View object
  • Finally, I added a text field and a button to the page
  • What I want to achieve is to insert all tags entered in the entry in the table fields, when the button is clicked. Note, however, that the entry field is a comma-separated list of tags, moreover, I have to insert only those tags that are new (to respect the constraint of database), and finally, I would like to use the sequence in insert or orders. Once completed, the page should also be updated.

  My first question is whether a stored procedure is the right way to perform such a step insert logical. If not, what other means must be used in the ADF.

  My second question is to know how to call the stored procedure and pass it the value of the input as a parameter field. I found this article http://andrejusb.blogspot.cz/2011/04/invoking-stored-procedures-and.html, but miss me a few transition points:

  1. How the callGreetingsFunction method call (I just get it that it's a method of the EO generated Java class?) after that the button is clicked?
  2. How to pass the value of the input field in this method as a parameter?

  Thanks in advance for your help.

  Now, what happens if I run it like this:

  A. the procedure is executed after a click on the button

  (B) the page is not updated (I had to do the research to get the new lines are visible in the table)

  C. the constraint is ignored (after discounting there were several lines with unique identification number, but pr is - empty)

  D. nothing has been committed to the database - if I closed the application window and it start again, the lines have disappeared from the table, but addition of new lines used number of increased seq

  E. Similarly, if I did directly inserts into the database, these lines did not appear until I transferred the application

  B. told it page to refresh. And that's usually enough to refresh your ViewObject with: viewObject.executeQuery)

  C. Si the constraint is not enforced for null values. And this has nothing to do with the adf, this is related to oracle db.

  D. you're calling commit.

  E. you must re-run your view object (viewObject.executeQuery ())

  Nevertheless, here is my rookie questions:

  There there a simple way to refresh the page (or just the table containing the data)?

  -How to validate changes (immediately after execution of the procedure)?

  -How is the constraint has been ignored? I am sure it would fail on validation, but I thought that it will be considered even for adding data to the table.

  -Are there a way to update the original Version of the database every time that the page is opened or refreshed?

  -Drag and drop operation Execute like button on your page (or call vo.executeQuery () by program)

  -Drag and drop the operation of posting as a button on your page (or invoke it by programming on the DBTransaction object)

  -ignored for what values? for null values? It is expected, because each null is "unique."

  -Yes, but you probably shouldn't do that for performance reasons, see this: Andrejus Baranovskis Blog: Cache results for ADF iterator property

  Read also this: Andrejus Baranovskis Blog: job ADF and PL/SQL Invocation changes side effect

  Dario

• transaction isolation stored procedure-level testing

  Hello

  I want to study the concurrency in the Oracle database using stored procedures in pl/sql with different transaction isolation levels.

  The idea is to send to the database of a number "n" of simultaneous transactions where n can be {100, 200, 400, 1000} and for each isolation level (READ COMMITTED, SERIALIZABLE) to determine the number of transactions committed, how much data, run time incorrect.

  The question is how can I generate n transactions that run simultaneously on the data base and how to get these results. I understand that this task can be done as well by using pl/sql stored procedure in the database or inside a JSP Java web application. Advantages/disadvantages?

  I should mention that I'm a begginner in Oracle...

  Thank you in advance.

  You want to run a large number of asynchronous (parallel) transactions.

  Although this can be done by running the Oracle's work, I think it is easier to work with the client side, using a Java program (for example).

  It doesn't have to be a web application (for example. JSP), can be a client Java that uses Java threads, and each thread is using a single database connection (and the corresponding database session).

  Kind regards

  Zlatko

• disconnected rowset select CachedRowSet of a statement within the stored procedure?

  Hello everyone

  I'm using CachedRowSet returned from a parameterized select statement and it works very well.

  If I put the same select statement in a simple read only then stored procedure I get this exception: "a result set has been generated for the update.

  I'm not trying to update all lines in my code.

  I tried to make the CachedRowSet to be read-only, but this does not help, same error.

  Question 1: a stored procedure returns a single result set can be called to fill a CachedRowSet read-only? (in a similar way to a method of CallableStatement prepareCall with input/output settings).

  Question 2: in general is something to be encouraged for future development or are they deprecated or replaced with something else or better using CachedRowSet, FilteredRowSet (disconnected) and WebRowSet, JDBCRowSet (connected)?

  Thank you very much in advance

  It work? (be sure that your stored procedure done * nothing * before running this query)

  PreparedStatement p = conn.prepareStatement ("{call dbo.p_testCachedJDBCRowSet (?)}" ");

  p.setInt (1, 10);

  CRS CachedRowSetImpl = new CachedRowSetImpl();

  CRS. Populate (p.ExecuteQuery ());

• Execution of the stored procedure Oracle EF6 error.

  Hello

  Need help with the oracle error

  {"ORA-06550: line 1, column 8:"}

  PLS-00306: wrong number or types of arguments in the call to "sp_name".

  ORA-06550: line 1, column 8:

  {"PL/SQL: statement ignored '}

  This error occurs when the code runs the line in Vb.net application in Model Designer

  MyBase.ExecuteFunction ("sp_name" para1, para2, para3, dOBpara4, para5)

  I create the SSDL and CSDL, MSL files for oracle to MS SQL connection by the method mentioned in the link JasonShort - professional profile - CodeProject it worked perfectly fine without the stored procedures. I managed to insert, update, and delete records. Then, I created stored procedures for Insert, Update, Delete. It worked fine with MS SQL. I copied and updated oracle files respectively. I gives me the error mentioned above.

  I executed stored procedures in Oracle SQL Developer, and it works without error. But when it is executed via the model there is light of the error. Can anyone let me know the solution for this error. I'm using VS2010, EF6, Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64 bit Production

  Thank you

  Prachin Soparkar

  Hello

  Sorry for the inconvenience. After I posted this question I took a break and saw that the error was nothing, but I had given FNAME as parameter name in MS SQL. In oracle when I created the sp I created the parameter with p_FNAME. Where the schema defined in the language SSDL and CSDL, MSL had to be changed to MS, but since I want to that it would be same in different databases, I choose to have changed it in oracle stored procedure. The error msg is confusing, it should be something not found parameter or incompatibility etc.

  Thank you

  Prachin Soparkar

• How to use stored procedures of database instead of triggers in database?

  Hi gurus

  Here in SQL / PLSQL community discussion, I read some discussions that the stored procedures of database are better and 9should be used instead of database triggers.

  But despite reading 10s of discussions, I am unable to understand how a stored procedure may be an alternative to a DB-trigger while having many differences.

  And even if I'm using a DB instead of DB-trigger procedure, then at what level I should call? of my application, oracle forms IE?

  And should I write 3 different procedures, each of them for the Insert, update and delete while I can manage all of these events from a single trigger?

  Will you please advice me for this because I am using widely especially triggers to maintain the Stock / inventory, update several tables of a trigger n etc.

  PS... I'm working on the database 10g Rel.2.

  I use extensively since Oracle 7 database triggers (database Oracle 6 had no triggers).

  I use it mainly for complex integrity checks and sometimes for the calculation of derived data.

  So, I do not accept that "database triggers are evil".

  It is often said that, instead of triggers in database, we use the API (API function, better than the table API).

  However, the API may not always replace triggers.

  Excellent explanation is given by Toon Koppelaars in 'triggers considered harmful, considered harmful' http://harmfultriggers.blogspot.com/

  Regarding your question, it is possible to make the procedures of database to work with Forms - Yes, it is possible.

  You can make the database to INSERT, UPDATE, and DELETE procedures and call them before or / and after INSERT / UPDATE / DELETE triggers of forms.

  Another option is to use on INSERT / UPDATE / DELETE triggers of forms.

  Please note that I do not use these forms to work with the Oracle database triggers. In my view, database triggers are much better.

  The third variant will create a data block in a procedure that uses a "table of records.

  Kind regards

  Zlatko

• selection of lines by using the stored procedure

  All the

  At the risk of asking something obvious, I would like to know if it is possible to wrap a selection within a stored procedure.

  Create the abc as procedure

  Start

  date of b;

  Select sysdate into double b;

  end;

  /

  Question: I have a select complex which should be called from JAVA. I don't want to create a VIEW since at the request of the view, indeed I will do so: SELECT * FROM (my original query) which leads to performance.

  I would like to be able to:

  exec has;

  This should give me the result of

  SELECT

  x, z, c

  Of

  one

  ;

  How can I make this possible a stored procedure?

  Thank you

  Well, yes there are ways to do it, but first of all, you are mistaken in thinking that select * from , would lead to a performance overhead.  The optimizer based on CSSTidy will optimize the request to provide results without worrying so there is no noticeable performance difference.

  Java, you probably want to use a ref cursor and get java to retrieve the results back.

  Example of refcursor function (demonstrated SQL * more I don't have Java)...

  SQL > create or replace function test RETURN as sys_refcursor
  cur_o 2 sys_refcursor;
  3. start
  4. open cur_o to select empno, ename from emp;
  5 return cur_o;
  6 end;
  7.

  The function is created.

  SQL > var r refcursor;
  SQL > exec: r: = test();

  PL/SQL procedure successfully completed.

  SQL > print r;

  EMPNO, ENAME
  ---------- ----------
  7369 SMITH
  7499 ALLEN
  7521 WARD
  7566 JONES
  7654 MARTIN
  7698 BLAKE
  7782 CLARK
  7788 SCOTT
  KING 7839
  7844 TURNER
  7876 ADAMS
  JAMES 7900
  7902 FORD
  7934 MILLER

  14 selected lines.