How To Name A Column From Data Stored In Certain Row
Oct 28, 2012
I am trying to name a column from data stored in a row (Phone number) I want to name it from the first 3 digits (Area code) and I have no clue how to do it I have googled but I think the query is a little too complicated for me to explain it and get a result from google or find it in a section of a book.
My phone numbers are strings, so I initially look for the first 3 characters and then start separating and counting, I can do that, the only problem I have is naming the column WITH the the first three digits that I just separated.
I am trying to name a column from data stored in a row (Phone number) I want to name it from the first 3 digits (Area code) and I have no clue how to do it I have Googled but I think the query is a little too complicated for me to explain it and get a result from Google or find it in a section of a book.
My phone numbers are strings, so I initially look for the first 3 characters and then start separating and counting, I can do that, the only problem I have is naming the column WITH the the first three digits that I just separated.
I am trying to learn by myself how to use databases and am using the HR database that comes in oracle since I read in a forum that it is a great way to learn how to use queries.
I read about using Pivot to do it, but in pivot I need to know how many area codes there are. I will post a screen shot of the table that I am working on the other post
[URL].....
I can group by phone number with this:
SELECT SUBSTR(PHONE_NUMBER, 1, 3) AREA, COUNT(SUBSTR(PHONE_NUMBER, 1, 3)) TOTAL_COUNT FROM EMPLOYEES GROUP BY SUBSTR(PHONE_NUMBER, 1, 3);
But what I am interested in doing is that instead of Area appearing as a column, that the actual first 3 digits would appear as the column name.
This is kind of what I am trying to do, but instead of AREA appearing as column name I would like for each one of the area codes to appear as column name, here is the
SELECT DE.DEPARTMENT_NAME, EM.SEX, SUBSTR(EM.PHONE_NUMBER, 1, 3) AREA, COUNT(SUBSTR(EM.PHONE_NUMBER, 1, 3)) TOTAL_COUNT FROM EMPLOYEES EM, DEPARTMENTS DE WHERE DE.DEPARTMENT_ID = EM.DEPARTMENT_ID GROUP BY DEPARTMENT_NAME, EM.SEX, SUBSTR(PHONE_NUMBER, 1, 3) ORDER BY DEPARTMENT_NAME;
When we try to query a column from a table the output is shown as "?????". Seems the data in that column is stored in a different character set, which is not recognised while displaying the output. The column size is 35byte.
The nls parameter table shows the character set as "we8mswin1252".
Is there a seeded function by which I can check all the rows which stored dates in varchar column.
I have a table say test (test_data varchar2(100));
Now I will insert all types of records into the table varchar,number dates and then i will write q query to etch all those records only which has dates only
INSERT INTO test(1); INSERT INTO test('ABC'); INSERT INTO test(SYSDATE); INSERT INTO test(TO_CHAR(SYSDATE,'DD-MON-YYYY')); INSERT INTO test(TO_CHAR(SYSDATE,'DD-MON-YYYY HH24:MI:SS')); INSERT INTO test('15/01/2012'); ... commit;
I'm using Oracle 11g enhanced ADD COLUMN Functionality. Adding new columns with DEFAULT values and NOT NULL constraint no longer requires the default value to be stored in all existing records.
Sometimes we change DB columns from NOT NULL with DEFAULT to NULL with DEFAULT. This operation "materialize" column default. Is there an easy way (Dictionary view) how to find, that COLUMN default value is stored as metadata or is "materialized" ?
Oracle RDBMS version : Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
I have a table named PRODUCT (ID Number , ProductImage BLOB). I have inserted some records in. I want to create a form for user to view this table.
When I create Data Block, in Data Block Wizard, if I select option 'Table or View' to retrieve data, it's ok (Data type of item ProductImage is Image, when I run form and query, it display image normally).BUT, I want to retrieve data from stored procedure in a package. This is my package
PACKAGE my_pkg IS TYPE my_rec IS RECORD ( myID PRODUCT.ID%TYPE, myImage PRODUCT.ProductImage%TYPE );
[code].....
I select option 'Stored Procedure' in Data Block Wizard, then select my stored procedure (my_pkg.Do_Query). Next I choose 2 columns from my stored procedure (ID, ProductImage). The wizard still applys data type of ProductImage as Image. I finish Data Block Wizard and Layout Wizard... run form, query and an error message display:
FRM-40364: The data type of item 'ProductImage' does not match the corresponding column in the stored procedure.
I try to change 'myImage PRODUCT.ProductImage%TYPE' -> 'myImage BLOB' in my package but still get that error.
I am trying to store Chinese characters in certain fields in my database:
NLS_CHARACTERSET is UTF8 Version 11.2 Client NLS_LANG = UTF8 Client Region Settings = Simplified Chinese (PRC)
To Test - I have a string value I am trying to write to a field in Oracle. Looking at the source string with a hex editor, the multibyte value is E6 9C AC.
Looking the character up in UTF8 tables (U + 672C ) I can the symbol matches what I see when I look at the string with my editor.
I write the string to a field in Oracle. I can select from the field in SQLPlus and see the correct symbol.
However, when I dump the field I get the hex values B1,BE not E6 9C AC as I would expect.
explain why? And how is B1, BE getting translated back to the 'correct' symbol?
I work on a client-server application, where users need to be able to run rather complex queries.
We currently have most of the queries defined in views on the Oracle database server and the client application simply downloads the data (i.e. SELECT * from example_view). This is good for us as we can maintain these queries without releasing new versions of the client tool.
However we have some queries implemented by a colleague that have caused a lot of trouble (efficiency and quality) and these are stored client-side.
The issue I have is that these client side queries can return records in different units (i.e. in standard cubic metres, or barrels of oil etc), as the SQL is defined at runtime on the client, and I want to know the best way to replicate this with SQL stored server-side.
The client-side SQL has column definitions such as: SELECT oil_production * decode(&unit,'Nm3',.948,'Sm3',1,'MMBOE',6.0924,1) ... The &unit parameter is then replaced by the appropriate text (i.e. 'Sm3') before the query is sent to Oracle.
Is there anyway to pass variables to server-side SQL and get a recordset back? I don't think PL/SQL procedures can do this? and views can't contain bind variables.
I have a XML data that needs to be stored in oracle table and it is read from a java application. what datatype will suit for XML storage varchar2 or CLOB. The length of XML will be less than 4000.
is it possible to base a Materialized View on results returned from a stored procedure?If not, do you see any other way except of filling a table with data from the stored procedure and then basing the MV on it?
The following code is a stored procedure I plan to use to populate a Data Warehouse dimension using data from two OLTP tables which already exist in my database. Notice that in my cursor select statement, I calculate an attribute using substr and instr, and I also assign a true or false value to a flag using a CASE statement.
CREATE OR REPLACE PROCEDURE populate_product_dimension AS v_Count NUMBER := 0; v_NumRecs NUMBER; /*Declare a cursor on the following query which returns mulitple rows of data from product and price_hist tables*/ [code]....
In my mind, Product_Code is declared correctly in the Cursor declaration Select statement.
I need to create an Oracle Stored Procedure to read a Flat file(pipe delimited) and load the data into an Oracle table. I believe the file should be located in any of the path as logged in dba_directories table or it can be anywhere on the local client machine?
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 Microsoft Visual Studio 2010 : VB Express Microsoft .NET Framework : Version 4.0.30319 RTMRel
When I populate dataset using select query and use OracleCommandBuilder and update dataadapter, data is saved in database.
But if I put same select in store procedure and use this to populate dataset then data is not updated in db.
I get this error
Update requires a valid UpdateCommand when passed DataRow collection with modified rows.
at da1.Update(ds1, "req") where I am going wrong.
Dim conn As New OracleConnection Dim da1 As OracleDataAdapter = New OracleDataAdapter Dim ds1 = New DataSet With conn If .State = ConnectionState.Open Then .Close()
create or replace procedure bank_search_sp ( p_tablename in varchar2, p_searchname in varchar2, p_bankcode out varchar2, p_bankname out varchar2, p_dist_code out number ) as v_tem varchar2(5000); begin v_tem :='select bankcode,bankname,dist_code from ' || UPPER (p_tablename) || ' where bankname like '''|| p_searchname||''; execute immediate v_tem into p_bankcode,p_bankname,p_dist_code using p_searchname ; commit; end bank_search_sp;
the Procedure is getting created but i dont know what actually happens when it was executed ,This is the error shown..ORA-01756: quoted string not properly terminated
ORA-06512: at "PENSIONS.BANK_SEARCH_SP", line 14 ORA-06512: at line 1
I have a database in which two table contains millions of data and the whole database size is getting more bigger. is there any option to archive the old data which has stored before 2012 and can be restored when the data required for 2011 or 2010 needed.
I have a table where i have description column which free text column, the data in description column is seperated and i want to corvert 1 row data in multiple rows dependeing on the number of words.
eg
id description 78664 Pumps Alarm from CAMS RTU154
In the above example this column has 5 word so i want data in 5 rows like below
78664 Pumps 78664 Alarm 78664 from 78664 CAMS 78664 RTU154
This column data can be varied from 1 to any number of words.
I downloaded a sample chart application from oracle website
[URL].......
it is working perfectly, but I want to know how it is build exactly. This is one of the queries,
"select null link, task_name, id, parent_task, start_date, end_date, decode(status,'Closed',100,'Open',60,'On-Hold',10,'Pending',0) status from eba_demo_chart_tasks order by project"
But I don't know where eba_demo_chart_tasks is stored, where can I find it!
I have some tables. TABLE1 contains columns called query_id and a column called List_name TABLE2 holds a list of data and the TABLE_NAME = value in TABLE1 held under LIST_NAME TABLE3 contains column with Query_ID and other info.
Is it possible to grab the entry in TABLE1 under LIST_NAME as a TABLE_NAME in a data source?
