I have a table containing hundreds of columns and I would like to be able to qualify my select statements so that only those columns containing a value are returned. Something like:
Select (non null columns) from tablename where columnX = 'whatever'
I have 8 columns. Some of them might be null.I want to display all 8 columns in my result. Not null columns will be first and null at the end.Here is a sample data :
Employee table :
Employee_id Emp_fname emp_lname emp_mname dept salary emp_height emp_weight
1 aaa ddd d1 100 6 180
2 bbb ccc 120 169
3 dfe d2 5.9 223
The expected result is :
result1 result2 result3 result4 result5 result6 result7 result8
1 aaa ddd d1 100 6 180
2 bbb ccc 120 169
3 dfe d2 5.9 223
I have 8 columns. Some of them might be null.I want to display all 8 columns in my result. Not null columns will be first and null at the end.
Here is a sample data :
Employee table :
Employee_id Emp_fname emp_lname emp_mname dept salary emp_height emp_weight
1 aaa ddd d1 100 6 180
2 bbb ccc 120 169
3 dfe d2 5.9 223
The expected result is :
result1 result2 result3 result4 result5 result6 result7 result8
1 aaa ddd d1 100 6 180
2 bbb ccc 120 169
3 dfe d2 5.9 223
I have a two question.
Question 1:How to select all columns from table except those columns which i type in query
Question 2:How to select all columns from table where all columns are not null without type each column name which is in empty data
We are working on a migration project and we need to move 75 million rows from source system to target system.
Total number of columns in source system - 90 cols.
Out of the 90 columns 10 cols are system fields and rest 80 are properties for each record.
We are required to migrate all system cols and some required properties. In total we will migrate around 25 columns[10+15] for each record.
Before actaul migration , we need to do a data cleansing activity and hence we move the data to a staging table.
To create the staging table, we considered the below appraoches.
1. Create the staging table with around 30 coloumns so as to fit the data from source system[map the columns based on datatype]
2.Create the staging table with actual columns[90 columns] and import only the required properties. The rest all columns will remain NULL.
Do the data cleansing and move to target system.
My question here is, if we go with approach 2, We will not mix the data, as there will be a one-to-one mapping. But many columns will not have data and remain NULL. Will it affect the performance since we deal with 75 million rows.
I have a table with around 80 columns. All i need is to select first 40 columns.
Is there any way to select first 40 columns without giving all the 40 Column Names in select clause.
i am getting following error while trying to insert value into columns of table.
ORA-01400: cannot insert NULL into ("demo"."col1"."col2")
I am experiencing somewhat same issue...but have been unable to resolve it(new to Oracle) I am getting the infile from flat file(data dump from SQL) using sqlldr to upload data to the Oracle table...since the data is already in the flat file...I cannot do anything in the SQL to pre-format the data...
Sample of ERROR I am getting - Column CREATE_DATE which has date and time - happens to other date time columns also if remove the CREATE_DATE from Control file(happens to every single line of record):
==========================================
Record 2: Rejected - Error on table LGCY_CHS.METS_CHS_USER_PRIV, column CREATE_DATE.
ORA-01841: (full) year must be between -4713 and +9999, and not be 0
[code]...
Flat file: (3 lines of data)
5|Annie|1|AR|84601D0A-6D9D-4D0F-86EB-2FDD9D7E680B|0|0|1|1|1|0|1|0|kgarbin|XPLTMCE01|2005-04-07 13:54:42.087|Annie|VAXP60|2008-10-03 16:54:59.583|2008-10-03 16:54:59.583
11|Beverly|1|BA|9A2D6304-E997-4B40-96E5-2221E521B077|1|0|0|1|0|0|0|0|kgarbin|XPLTMCE01|2005-04-07 13:54:42.087|BEVERLY|VAXP60|2008-10-03 09:39:33.973|2008-10-03 09:39:33.973
29|KGarbin|1|KG|B229FCF9-BED0-4E50-9804-83324B677C67|0|0|1|1|1|1|0|1|kgarbin|XPLTMCE01|2005-04-07 13:54:42.087|Gfoote|VAXP60|2008-09-08 10:05:01.690|2008-09-08 10:05:01.690
I have a sql queries in that i saw one sql querie like this
select columnname,null columnname from tablename
what is the meaning of this which i marked with red (null columanmea)
I regularly upload various tab-delimited text data files with SQL Loader. The control files always specify TERMINATED BY X'09'. Certain columns in those data files may be null for some rows, i.e. there is no character between two subsequent tabs. It always works like a clock.
Now, I have run into a specific case where I have to strip a data column of double quotes that may or may not enclose the actual data (side effect of a text export from Excel).
I tried simply adding OPTIONALLY ENCLOSED BY '"' behind the terminated delimiter and it did work for the file and column in question. Still, with this new option, files with null values are no longer decoded correctly. The loader seems to simply skip those values, which provokes column shifts and results in either a corrupt load, or a load failure.
For now, I've got a workaround dropping the new option and executing an SQL script eliminating double quotes directly in the database, but that obviously cannot last.
i have a stored proc where i am selecting a value into a variable like so:
SELECT FUNCTION
INTO V_FUNCTION
FROM FUNCTION_TABLE
WHERE FUNCTION = P_INPUT;
Now, my problem lies in where there is no value returned (oracle will throw an error).
My Database is in Oracle 11g.
My query returns the 3rd field from a CSV string. If the third field in the string is empty I want the select to return a null but it returns the 4th field :
SELECT REGEXP_SUBSTR( 'A,B,,D,E','[^,]+',1,3) from dual;
.. this returns 'D'.
Can we somehow make the REGEX_SUBSTR return a NULL for the third field ?
I got a requirement to check if a particular range of values are present , if few values missing then have to add null for the values. This has to be a SQL statement.
table 1 :
fiscal_month_id, value1, value2
2010100028482848
2010110025712709.5
2010120027452721.3
2011010026052692.25
2011020026382681.4
2011030030992751
2011040027662753.14
2011050029732780.625
This is the table. the fiscal month id denotes that the values is from month Oct(20101000) to May (20110500). The fiscal year cycle for me is from OCT to SEP. Hence when we select this table, the select should retreive the below data
fiscal_month_id, value1, value2
2010100028482848
2010110025712709.5
2010120027452721.3
2011010026052692.25
[code].....
How to do this in a select statement ?
This fiscal_month_ID is actual from another table where all time level information are kept.
I'm working on a Oracle Database, and I'm gettin incorrect results when including a date field in the select list which is NULL in the table.
This works correctly and returns exactly one row:
SELECT firstField FROM table WHERE firstField = 'value'
while this doesn't and returns no rows:
SELECT firstField, secondField FROM table WHERE firstField = 'value'
Where secondField is of type date and its value is NULL (00-000-00). Note that the only thing that changes is the select list.
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi
PL/SQL Release 10.2.0.5.0 - Production
"CORE10.2.0.5.0Production"
TNS for Linux: Version 10.2.0.5.0 - Production
NLSRTL Version 10.2.0.5.0 - Production
See attached file for creation script and data load.Each staff member is required to complete at least one task every three years. The source table contains an EID (aka User ID) and a date column for each task with a date of when the task was completed. If a task has never been started/completed the date value is "NULL".
If a row looks like this:
EID,DATE01,DATE02,DATE03,DATE04,DATE05,DATE06,DATE07,DATE08,DATE09,DATE10,DATE11,DATE12,DATE13
68,NULL,11/10/2009,5/3/2010,4/22/2012,NULL,NULL,4/14/2010,NULL,NULL,NULL,NULL,4/14/2010,4/14/2010
The the result set would look like this:
EID,MaxDate,Within_Last_3_Years
68,4/22/2012,'YES'
The result set will show the EID, date of latest task completed and if the task was completed within the last 3 years from given date (for example June 30, 2012).
Below is the query that I have:
Quote:
select a.contact, b.db_name
from MOM.db_contacts@DB_LINK a, MOM.databases@DB_LINK b,
where a.DB_ID=b.DB_ID
and b.DB_name=(SELECT unique substr(upper(t.target_name), 1, instr(t.target_name,'_',1,1)-1)
FROM mgmt_targets t JOIN mgmt_current_severity s
ON s.target_guid = t.target_guid
WHERE t.target_type = 'oracle_database'
and UPPER(t.target_name) like '%11GDB%');
How can I add two more columns into the select statement and the two columns are in the tables that were in the sub query..I would like to have something like this:
Quote:
select a.contact, b.db_name, COLUM1, COLUMN2
from MOM.db_contacts@DB_LINK a, MOM.databases@DB_LINK b, mgmt_targets t, mgmt_current_severity s
where a.DB_ID=b.DB_ID
and b.DB_name=(SELECT unique substr(upper(t.target_name), 1, instr(t.target_name,'_',1,1)-1)
FROM mgmt_targets t JOIN mgmt_current_severity s
ON s.target_guid = t.target_guid
WHERE t.target_type = 'oracle_database'
and UPPER(t.target_name) like '%11GDB%');
I've read so many different pages on this topic but I can't seem to get my query the way it needs to be. Here's the query:
select admitnbr, lastname||', '||firstname||' '||finitial, hphone, mobile, wphone, med_rec, dob
from patients join schedule using (key_patien)
join adtmirro using (key_patien)
where appt_state = 'ON HOLD'
Because patients in my database can have multiple appointments "on hold" there are duplicates in the results. I only need 1 record per patient in order to forward this information into an automated dialer to contact that patient. I do NOT want to call the patient over and over again. Once will suffice. I'm trying to make a distinction on the column 'med_rec'. One row per 'med_rec' will be awesome but I can't find a way to create a distinct on that column.
I have a table which stores Employees and their Phone numbers. Each employee can have multiple numbers e.g.
Employee, Number
Adam, 123
Adam, 456
John, 123
John, 456
I am trying to write a select statement that will split the rows into columns and group by each employee e.g.
Employee, Number1, Number 2
Adam, 123, 456
John, 123, 456
I created a user and granted connect, resource to the user. but trying to select columns from the view USER_HISTORY$,it's showing no value, i tried to login the user several times, but it's displaying no value, any particular reason or any minor mistake?
View 1 Replies View Relatedim trying to select columns from different tables dynamically in a function . The parameter for the function will be table name and column id's, In this number of columns may vary . Is it possible to have dynamic %rowtype to store the cursor value in it.
View 2 Replies View RelatedOur DBA set up a Heterogeneous Service to one of our MS SQL Servers and we can use a DB Link to SELECT a table from the SQL Database. This works just fine but the problem is any nText column on the SQL Database Table doesn't appear. All the columns are shown EXCEPT the nText columns.
how to correct this? We need the ability to select the nText columns also.
i have two tables test1 and test2. i want to update the column(DEPT_DSCR) of both the tables TEST1 and TEST2 using select for update and current of...using cursor.
I have a code written as follows :
DECLARE
v_mydept1 TEST1.DEPT_CD%TYPE;
v_mydept2 TEST2.DEPT_CD%TYPE;
CURSOR C1 IS SELECT TEST1.DEPT_CD,TEST2.DEPT_CD FROM TEST1,TEST2 WHERE TEST1.DEPT_CD = TEST2.DEPT_CD AND TEST1.DEPT_CD = 'AA' FOR UPDATE OF TEST1.DEPT_DSCR,TEST2.DEPT_DSCR;
[code].......
The above code when run says that it runs successfully. But it does not updates the desired columns[DEPT_DSCR].
It only works when we want to update single or multiple columns of same table...i.e. by providing these columns after "FOR UPDATE OF"
I am not sure what is the exact problem when we want to update multiple columns of different tables.
I am student of Oracle programming(SQL).Has a question on MIN and MAX functions:
- "Write a SELECT statement that returns one row for each customer with four columns--the customer's first and last name, the date of the customer's most recent order, and the date of the customer's oldest order and the difference between the two dates. Sort the result set so the customers who have been ordering with the company the longest appear first. Use most recent order date as a tie-breaker for the sort."
where orders and order_details,customers are 3 different.this is my query ...but its not working.
SELECT DISTINCT customers.customer_first_name||' '||customers.customer_last_name AS Customer_name,MAX(order_date) AS "Most recent order", MIN(order_date) AS "Oldest order"
FROM customers
INNER JOIN orders
ON customers.customer_id=orders.customer_id
LEFT JOIN order_details
ON orders.order_id=order_details.order_id
LEFT JOIN items
ON order_details.item_id=items.item_id
ORDER BY Customer_name
The below sql is giving different number of result sets while adding further columns in select clause.i.e After adding the columns 4,5,6 in the below query its giving different number of result set.In this case the result set count would be 5.
Before adding the columns 4,5,6,the result set count was 11.
SELECT PAYMENT_METHOD_MAP.NETTINGGROUP_ID,
PAYMENT_METHOD_MAP.CREDITPAYMENTMETHOD_CD,
PAYMENT_METHOD_MAP.DEBITPAYMENTMETHOD_CD,
PAYMENT_METHOD_MAP.AGENT_ID,
SETTLEMENT.NETTINGGROUP_ID,
SETTLEMENT.SETTLEMENTDATE
[code]....
i want to select columns of 3 tables in such a way that period column should be in the group by function.
create view allocated_budgets_detail as
select ba.ba_fin_year, ba.ba_start_date, ba.ba_end_date, ba.ba_rev_no,
bh.bh_budget_code,
bd.bd_period,
bb.bb_entered_amount
from budget_header bh, budget_allocation ba, budget_distribution bd, budget_balance bb
where bh.bh_budget_id = ba.ba_budget_id
and ba.ba_line_id = bd.bd_budget_line_id
and ba.ba_line_id = bb.bb_budget_line_id
group by bd.bd_period
I have the following query:
select col_1,col_9 from
book_temp b
where b.col_1 is not null
order by to_number(b.col_16)
;
What I want to add is the following:
COL_9
=====
NULL
A
B
NULL
C
D
E
F
NULL
G
I need to connect the NON-NULL rows to the preceding NULL row.
I am running a GROUP BY query on a few columns of enumerated data like:
select count(*), Condition, Size
group by Condition, Size;
COUNT(*) CONDITION SIZE
-------- ---------- --------
3 MINT L
2 FAIR L
4 FAIR M
1 MINT S
Well, let's say I also have a timestamp field in the database. I cannot run a group by with that involved because the time is recorded to the milisec and is unique for every record. Instead, I want to include this in my group by function based on whether or not it is NULL.
For example:
COUNT(*) CONDITION SIZE SOLDDATE
-------- ---------- -------- ----------
3 MINT L ISNULL
2 FAIR L NOTNULL
2 FAIR M NOTNULL
2 FAIR M ISNULL
1 MINT S ISNULL
I have a table which has a not null column. the column is date field. I am trying to change it to Null. But it is giving a error.
I am using below query.
ALTER TABLE T_test
modify (paid_to_date null)
create table test
(
id int ,
dat date
)
/
I want to implement a business rule such as we have for each id at most 1 dat null. So, I've created this unique index on test.
create unique index x_only_one_dat_cess_null on test(id, case when dat_cess is null then 'NULL' else to_char(dat_cess, 'dd/mm/yyyy') end);
insert into test values (1, sysdate);
insert into test values (1, sysdate - 1);
insert into test values (1, null);
insert into test values (1, null);
-- -----
insert into test values (2, sysdate);
insert into test values (2, sysdate - 1);
insert into test values (2, null);
The 4th insert will cause an error and this is what I wanted to implement. OK. Now the problem is that for non-null values of dat, we can't have data like this
iddat
------------
124/10/2013
123/10/2013
123/10/2013
1
because of the unique index (the 2nd and the 3rd row are equal). So just for learning purposes, how could we allow at most one null value of dat and allow duplicates for non-null values of dat.
when i follow this steps mention on this website
[URL].........
to modify column from null to not null i got this error and on this website its show successful
my steps are
first i create a table
SQL> create table Stu_Table(Stu_Id varchar(2), Stu_Name varchar(10),
2 Stu_Class varchar(10));
Table created.
Then insert some rows into Stu_Table
SQL> insert into Stu_Table (Stu_Id, Stu_Name) values(1,'Komal');
1 row created.
SQL> insert into Stu_Table (Stu_Id, Stu_Name) values(2,'Ajay');
1 row created.
SQL> insert into Stu_Table (Stu_Id, Stu_Name) values(3,'Rakesh');
1 row created.
SQL> insert into Stu_Table (Stu_Id, Stu_Name) values(4,'Bhanu');
1 row created.
SQL> insert into Stu_Table (Stu_Id, Stu_Name) values(5,'Santosh');
1 row created.
SQL> select * from Stu_Table;
ST STU_NAME STU_CLASS
-- ---------- ----------
1 Komal
2 Ajay
3 Rakesh
4 Bhanu
5 Santosh
Table Structure is like this
SQL> Describe Stu_Table
Name Null? Type
----------------------------------------- -------- ----------------------------
STU_ID VARCHAR2(2)
STU_NAME VARCHAR2(10)
STU_CLASS VARCHAR2(10)
now when i try to modify this Stu_id column to not null its give me error.
SQL>ALTER TABLE Stu_Table MODIFY Stu_Id int(3)not null;
ALTER TABLE Stu_Table MODIFY Stu_Id int(3)not null
*
ERROR at line 1:
ORA-01735: invalid ALTER TABLE option
and when i try to add new column with not null its also gives me error
SQL> ALTER TABLE Stu_Table add C1_TEMP integer NOT NULL;
ALTER TABLE Stu_Table add C1_TEMP integer NOT NULL
*
ERROR at line 1:
ORA-01758: table must be empty to add mandatory (NOT NULL) column