Referencing table created column names

probably a really simple solution but I'm having trouble,
when you create a new column in an SQL query:
example - ISNULL(row1, 99999) AS ideal
how do I then reference that column within the same query?
(example - (ideal + 10) AS newideal) When i refer to it as
ideal I get an error stating that
ideal is an invalid column name (presumably meaning it
cannot be found in any of the tables in the from clause.
is there a special prefix i need or other such system in
order to reference columns created within a query whilst still in
said query??
Thanks

Can't do it by alias, as you would just repeat the
calculation/function/whatever and add whatever additional "stuff"
to create your new column.
ISNULL(row1, 99999) AS ideal,
ISNULL(row1, 99999)+10 AS newideal
etc.
Phil

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Referencing table-aliased column names in JDBC

We are attempting to port an application from MySQL to Oracle 8i, using JDBC as the database connection technology. The app has SQL statements using joins, e.g.
SELECT A.*, B.* FROM table1 A, table2 B WHERE A.field1=B.field2 etc
Often the tables have columns sharing the same name, so the table alias is required to avoid ambiguity (e.g. both tables have column ID, so they must be referenced as A.ID or B.ID).
When using MySQL, the Java code
String strField = rset.getString( "SURNAME" );
or
String strField = rset.getString( "A.SURNAME" );
both succeed if the column name is unique, and if it is not unique, only the second form works. However, with Oracle, the second form never works, even though the column name is a valid column in the table aliased as A. Providing the whole table name does not work either:
String strField = rset.getString( "table1.SURNAME" );
If the Oracle JDBC driver does not support the {table-alias}.{column-name} syntax, then presumably the only way to reference ambiguous columns in joins is to supply the column number instead. (e.g. getString( 14 )). Our application generates dynamic SQL, and having to do this would be a MAJOR problem.
We are currently using Oracle 8i - might this have been fixed in the move to 9i?
Many thanks for any help,
Steve Francis,
London, UK.

Can't do it by alias, as you would just repeat the
calculation/function/whatever and add whatever additional "stuff"
to create your new column.
ISNULL(row1, 99999) AS ideal,
ISNULL(row1, 99999)+10 AS newideal
etc.
Phil

Migrating from Sql Server tables with column name starting with integer

hi,
i'm trying to migrate a database from sqlserver but there are a lot of tables with column names starting with integer ex: *8420_SubsStatusPolicy*
i want to make an offline migration so when i create the scripts these column are created with the same name.
can we create rules, so when a column like this is going to be migrated, to append a character in front of it?
when i use Copy to Oracle option it renames it by default to A8420_SubsStatusPolicy
Edited by: user8999602 on Apr 20, 2012 1:05 PM

Hi,
Oracle doesn't allow object names to start with an integer. I'll check to see what happens during a migration about changing names as I haven't come across this before.
Regards,
Mike

List tables and column names a stored procedure is querying

Hello,
Is there a way to list tables and column names that a stored procedure is querying, i.e, selecting from, using T-SQL? If yes, is there a way to also show data types for the columns that a stored procedure is querying, i.e, selecting from?
Thank you,
Lenfinkel

One way to view the dependencies of an object is to use SSMS; navigate to the object, right click and select "view dependencies". However this does not tell you what columns are being referenced by the Stored Procedure.
One way to view what is being referenced by a stored procedure is to run something like
select
text
from syscomments
where
id in
(select id
from sysobjects
where
name
=[Your Object Name]
And xtype
in
('p','P')
Please click "Mark As Answer" if my post helped. Tony C.

Toplink JPA forces database table and column names to UPPERCASE! Why?

I have recently experienced using Toplink JPA while using glassfish ... migrating an existing application to EJB 3.0 persistence. Toplink JPA, as implemented in glassfish, forces tablenames and column names from my code to be uppercase in select statements, etc. as then submitted to the database. Why? I cannot find anything in the EJB 3.0 specs on persistence that even suggests this.
This created a serious problem for me, in my application. For my code to work I had to change the names of the database tables to all uppercase, even though that meant other of my applications, already written using the original mixed case names of the databases, will no longer work unless I revise the code in those applications! (I am using mySQL as my database.)
In both Unix/Linux and Java, which are both case sensitive, If I wanted names of files or other items to be uppercase, I would have written them that way. I do not expect some middleware piece of software to muck around with the case of text I have put into my code.
I am hopeful this 'feature' of the reference implementation of the EJB Persistence API will be corrected in a subsequent version. [Maybe you can tell I am not happy!]
Thanks for listening to my rant.

Robert,
I found that the name I specify in all of my @Table, @Column, ... annotations is used with the case as it is provided.
If TopLink determines the schema information through defaults then the names it comes up with are definitely upper cased by default.
Are you specifying the schema information that you want in annotations or XML?
Doug

How to update a table whose column name contains an ampersand?

Hello,
I am needing to update a column whose column name contains an ampersand, and cannot figure out a way to do this. Option is not there to have the column name changed.
Ex:
UPDATE aircrafts
SET d&f = 1
WHERE aircraft_code = '737';
this returns an error of missing an = sign
I tried:
SET 'd'||'&'||'f' = 1
doesnt work
Any help is greatly appreciated.
Thanks,
Laura

SET DEFINE OFF
will stop interpreting the & sign as starting of a lexical parameter on the client.
Not sure if you have that issue there.
& might also be a not allowed character in normal column names (didn't test).
In that case you might need to put the column name in ".
+example+
{code}
UPDATE aircrafts
SET "d&f" = 1
WHERE aircraft_code = '737';
{code}
Be aware that in this case the column name must be spelled exactly like it was when the table was created.
Included upper/lower case.
{code}
UPDATE aircrafts
SET "D&F" = 1
WHERE aircraft_code = '737';
{code}

SQL text parsing to obtains referenced tables and columns

I wonder if anyone has a method of scanning an SQL statement to retrieve tables and columns referenced. EG:
select
f.cola, f.colb, f.colc, b.cold
from
foo f, bar b
where
f.cola=b.cola and f.colb=b.colb
order by f.colz, b.colawould provide
Tables
foo
bar
Columns
foo.cola [SELECT] [WHERE]
foo.colb [SELECT] [WHERE]
foo.colc [SELECT]
foo.colz [ORDER BY]
bar.cola [WHERE] [ORDER BY]
bar.colb [WHERE]
bar.cold [SELECT]The reason is that I'd like to query through several SQL scripts and validate tables and columns in a new version of the ERP system exist

That query with date substitution should also work. Are you seeing some errors?
SQL> explain plan for select * from scott.emp where hiredate = to_date(':some_date', 'dd-mon-yyyy') ;
Explained.
SQL> @utlxpls
PLAN_TABLE_OUTPUT
| Id | Operation            | Name       | Rows | Bytes | Cost |
|   0 | SELECT STATEMENT     |             |     1 |    40 |     2 |
|* 1 | TABLE ACCESS FULL   | EMP         |     1 |    40 |     2 |
Predicate Information (identified by operation id):
   1 - filter("EMP"."HIREDATE"=TO_DATE(':some_date','dd-mon-yyyy'))
Note: cpu costing is off
14 rows selected.
SQL>

Displaying table and column names

i have a user that created a table, he is not sure of the name of the table. how do i display a list of tables and display the column names within a table??

You would need to know who the user is, or alter the following script.
The script waits for 2 entries:
1- the tablenames that start with the first characters entered;
2- the columns that start with the first characters entered;
(If you want to search for "any" tables and/or columns that contain the charatcers you enter, preceed the parameters entered with a % sign).
(If you want to search for "any" table or character, do not enter anything.
This is a "raw" script that should do job. I think it should do the minimum you are looking for.
SET PAGESIZE 50
SET LINESIZE 120
SET TIMING ON
COLUMN OWNER HEADING 'OWNER' FORMAT A12
COLUMN TABLE_NAME HEADING 'TABLE NAME' FORMAT A30
COLUMN COLUMN_NAME HEADING 'COLUMN NAME' FORMAT A30
COLUMN DATA_TYPE HEADING 'TYPE' FORMAT A10
COLUMN DATA_PRECISION HEADING 'PREC' FORMAT 99G999
COLUMN DEFAULTVAL HEADING 'DEF VALUE' FORMAT A10
COLUMN INDEX_NAME HEADING 'INDEX NAME' FORMAT A30
COLUMN INDEX_TYPE HEADING 'TYPE OF INDEX' FORMAT A27
COLUMN UNIQUENESS HEADING 'UNIQUE' FORMAT A3
COLUMN PARAMETERS HEADING 'PARAMETERS' FORMAT A500 NEWLINE
-- Query
SELECT DISTINCT --COUNT(*)
C.TABLE_NAME,
C.COLUMN_NAME,
C.DATA_TYPE,
C.DATA_LENGTH,
C.DATA_PRECISION
FROM ALL_TAB_COLUMNS C,
ALL_CONS_COLUMNS CC1
WHERE
(C.COLUMN_NAME = CC1.COLUMN_NAME(+)
AND UPPER(C.TABLE_NAME) = UPPER(CC1.TABLE_NAME(+)))
AND UPPER(C.TABLE_NAME) LIKE UPPER('&PARAM1%')
AND UPPER(C.COLUMN_NAME) LIKE UPPER('&PARAM2%')
--AND OWNER = 'SYS'
--AND DATA_TYPE = 'DATE'
--AND DATA_TYPE != 'CLOB'
--AND DATA_TYPE != 'LONG'
ORDER BY C.TABLE_NAME, C.COLUMN_NAME;
Hope this helps.

How to get table and column names thats being used in SQL , that's generating all my reports on SSRS.

Good day,
I searched through the forum and cant find anything.
I have around 300 published reports on SSRS and we are busy migrating to a new system.
They have already setup their tables on the new system and I need to provide them with a list of table names and column names that are being used currently to generate the 300 reports on SSRS.
We use various tables and databases to generate these reports, and will take me forever to go through each query to get this info.
Is it at all possible to write a query in SQL 2008 that will give me all the table names and columns being used?
Your assistance is greatly appreciated.
I thank you.
Andre.

There's no straightforward method for that I guess. There are couple of things you can use to get these details
1. query the ReportServer.dbo.Catalog table
for getting details
you may use script below for that
http://gallery.technet.microsoft.com/scriptcenter/42440a6b-c5b1-4acc-9632-d608d1c40a5c
2. Another method is to run the reports and run sql profiler trace on background to retrieve queries used.
But in some of these cases the report might be using a procedure and you will get only procedure. Then its upto you to get the other details from procedure like tables used, columns etc
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

How to read the data from an internal table,when column names are known

Hi All
I have a specific requirement. I got an internal table with many fields (let it be my_tab). Some of the fieldnames (column names in internal table my_tab) are stored in separate internal table(let it be my_fields).
I need to store/read data corresponding to the fields (whose name is stored in my_fields) from my_tab.
I am able to build dynamic table (referred by field-symbol) with respect to the given field names in my_fields.
But i am unable to read the data corresponding to the fieldnames from my_tab.
Please provide me some pointer in this regard.
Regards
Swetabh Shukla

HI All
Thanks for the prompt response. I got solution for my question. Please check below thread. For quick reponse i posted my question in one more category. Thanks to all of you.
How to read internal table w.r.t. fieldnames stored in other table

Check the table and column name in R12 web screen

Hello Friends
Please any body can tell me how can I find out the table name and column name in web based forms like supplier, customer in R12. In 11i I can find out the table name and column name from help menu by record history and diagnostic -> examine menu.
Thansk
Makshud

Hi,
Please see (Note: 741366.1 - How to get Supplier table information? How to get About this Page link in OA page in R12).
Thanks,
Hussein

Column values in table equal column names in other table (unpivot? cross apply?)

2 tables:
CREATE TABLE Requirement
reqID int IDENTITY(1,1) PRIMARY KEY,
req_result_id numeric(10,0) NOT NULL,
description varchar(200),
heading varchar(100),
GO
INSERT INTO Requirement VALUES (5296,'Cold pack','HH19_5');
INSERT INTO Requirement VALUES (5296,'Band-Aids','HH19_6');
INSERT INTO Requirement VALUES (5296,'First aid cream','HH19_7');
INSERT INTO Requirement VALUES (5296,'Tape','HH19_8');
INSERT INTO Requirement VALUES (5296,'Gloves','HH19_9);
INSERT INTO Requirement VALUES (5296,'Bandages','HH19_10');
INSERT INTO Requirement VALUES (5296,'Hand sanitizer','HH19_11');
INSERT INTO Requirement VALUES (5296,'Scissors','HH19_12');
INSERT INTO Requirement VALUES (5296,'Poison control information','HH19_13');
INSERT INTO Requirement VALUES (5296,'Name','HH02');
GO
CREATE TABLE Response
respID int IDENTITY(1,1) PRIMARY KEY,
req_result_id numeric(10,0) NOT NULL,
HH02 varchar(200),
HH19_5 varchar(20),
HH19_6 varchar(20),
HH19_7 varchar(20),
HH19_8 varchar(20),
HH19_9 varchar(20),
HH19_10 varchar(20),
HH19_11 varchar(20),
HH19_12 varchar(20),
HH19_13 varchar(20),
GO
INSERT INTO Response VALUES (33,'Mary',7,8,9,10,11,12,13,14,15);
INSERT INTO Response VALUES (35,'Barbara',7,8,9,10,11,12,13,14,15);
INSERT INTO Response VALUES (144,'Melissa',7,8,9,10,11,12,13,14,15);
INSERT INTO Response VALUES (146,'Missy',7,8,9,10,11,12,13,14,15);
INSERT INTO Response VALUES (5296,'Pamela',7,8,9,10,11,12,13,14,15);
GO
Result:
description
heading
response
Name
HH02
Pamela
Bandages
HH19_10
12
Hand sanitizer
HH19_11
13
Scissors
HH19_12
14
Poison control information
HH19_13
15
Cold pack
HH19_5
7
Band-Aids
HH19_6
8
First aid cream
HH19_7
9
Tape
HH19_8
10
Gloves
HH19_9
11
For now, I'm using where req_result_id = 5296. Only one row from the Response table is selected.
I'm playing with unpivot and cross apply. I might use two CTE's but am not yet sure how to join them. I would just like to see what others here suggest.
I only need help with T-SQL - not table design.
Let me know if you need more info or if I need to reformat the expected output to make it legible.
Thanks for any suggestions.

CREATE TABLE Requirement
reqID int IDENTITY(1,1) PRIMARY KEY,
req_result_id numeric(10,0) NOT NULL,
description varchar(200),
heading varchar(100),
GO
INSERT INTO Requirement VALUES (5296,'Cold pack','HH19_5');
INSERT INTO Requirement VALUES (5296,'Band-Aids','HH19_6');
INSERT INTO Requirement VALUES (5296,'First aid cream','HH19_7');
INSERT INTO Requirement VALUES (5296,'Tape','HH19_8');
INSERT INTO Requirement VALUES (5296,'Gloves','HH19_9');
INSERT INTO Requirement VALUES (5296,'Bandages','HH19_10');
INSERT INTO Requirement VALUES (5296,'Hand sanitizer','HH19_11');
INSERT INTO Requirement VALUES (5296,'Scissors','HH19_12');
INSERT INTO Requirement VALUES (5296,'Poison control information','HH19_13');
INSERT INTO Requirement VALUES (5296,'Name','HH02');
GO
CREATE TABLE Response
respID int IDENTITY(1,1) PRIMARY KEY,
req_result_id numeric(10,0) NOT NULL,
HH02 varchar(200),
HH19_5 varchar(20),
HH19_6 varchar(20),
HH19_7 varchar(20),
HH19_8 varchar(20),
HH19_9 varchar(20),
HH19_10 varchar(20),
HH19_11 varchar(20),
HH19_12 varchar(20),
HH19_13 varchar(20),
GO
INSERT INTO Response VALUES (33,'Mary',7,8,9,10,11,12,13,14,15);
INSERT INTO Response VALUES (35,'Barbara',7,8,9,10,11,12,13,14,15);
INSERT INTO Response VALUES (144,'Melissa',7,8,9,10,11,12,13,14,15);
INSERT INTO Response VALUES (146,'Missy',7,8,9,10,11,12,13,14,15);
INSERT INTO Response VALUES (5296,'Pamela',7,8,9,10,11,12,13,14,15);
GO
;with mycte as (
select respID,req_result_id,response,heading from Response
cross apply (values
([HH19_5],'HH19_5')
,([HH19_6],'HH19_6')
,([HH19_7],'HH19_7')
,([HH19_8],'HH19_8')
,([HH19_9],'HH19_9')
,([HH19_10],'HH19_10')
,([HH19_11],'HH19_11')
,([HH19_12],'HH19_12')
,([HH19_13],'HH19_13')
,([HH02],'HH02') ) d(response,heading)
WHERE req_result_id=5296 )
select description,r.heading,response from Requirement r
inner join mycte m on r.req_result_id=m.req_result_id and r.heading=m.heading
Order by Case When len(r.heading)=4 then 1 Else 2 END, Len(Replace(r.heading,'HH19_','')) desc
drop table Requirement,Response

Query to Find Table and Column Name by using a value

Dear Legends,
I hope and surfed in our forums and google to find the Table Name and Column Name by having a value(Number/String). And my where clauses are
where owner NOT IN ('SYS','SYSTEM') and
data_type IN ('CHAR','VARCHAR2','NUMBER')
May I have your help for building the query. and my query as follows
select a.owner, c.column_name, c.data_type, c.owner, c.table_name
from dba_objects a, all_tab_cols c
where a.owner NOT IN ('SYS','SYSTEM') and
where c.owner NOT IN ('SYS','SYSTEM') and
where c.data_type IN ('CHAR','VARCHAR2')
order by a.owner
Thanks,
Karthik

You can use
select * from user_tab_columns a, user_tables b
where a.table_name = b.table_name
and a.data_type in ('NUMBER', 'VARCHAR2', 'NCHAR', 'CHAR');
Or if you want to user DBA_* tables, you can use.
select * from dba_tab_columns a, dba_tables b
where a.table_name = b.table_name
and a.owner = b.owner
and a.data_type in ('NUMBER', 'VARCHAR2', 'NCHAR', 'CHAR')
and b.owner not in ('SYS', 'SYSTEM');
And now when I look a bit more closely, you don't need DBA_TABLES there. dba_tab_columns alone is sufficient. And requirement is still not clear yet. Why you need a group by there? If I get it right, you can use this.
select * from dba_tab_columns a
where a.data_type in ('NUMBER', 'VARCHAR2', 'NCHAR', 'CHAR')
and a.owner not in ('SYS', 'SYSTEM');
Whether you use group by or not, the query will give you the same output.
Ishan

Generating mixed case for table and column names

I trying to get table definition from Oracle 9i database into my toplink workbench
(version 9.0.3), the column names and table names are capitilized by
default, how do I change this to be mixed case? Thanks

I'm not sure why you want them changed. The Oracle database by default is case insensitive, which in essence means it converts everything to upper case when a case is not specified (which can be done by wrapping it in quotes). Unfortunately, Java strings are case sensitive. This means that if you try searching resultsets for "TableName" when the database driver is returning "TABLENAME", you will run into problems. It is probably better to have your project match your database as closely as possible to avoid any issues later on.
That said, I don't know of a way to automatically have the workbench use mixed case names - it uses the strings as they are returned from the database. I believe you will need to manually change the table names if you want them to be different than what you have imported.
Best Regards,
Chris

How to view all tables and column names from a remote database

Hey Guys,
I have a database in a remote server. I have the db link and the schema name.. Now i want to view all the tables in the remote database with column names.. I dont have access to that database using sql developer.. But i can view some tables using the db link..Is there any way i can view all the tables with the column names?

user10683742 wrote:
Dont think i have DBA access..It gives the following error
ORA-00942: table or view does not exist
00942. 00000 - "table or view does not exist"You don't have to have 'dba' access, per se. You just have to have SELECT ALL TABLES privilege. when you use a db_link, you are connecting to the remote db with the user defined in the link, and .. on that db .. you will have the privileges of the user defined in the db link. Exactly as if you had used sqlplus to connect to that db with that user.

Referencing table created column names

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