DBA_HIST_ACTIVE_SESS_HISTORY get sql by user and object schema - oracle

Hi I am learning ASH and AWR tables but any ideas as to how i can get list of sql, objects and schema owner accessed by a give user in last 30 days ? Basically get all SQL text, and then search within this SQL to see if a given object (table, package, function, view etc ) is accessed for a given schema and by which user ? Any ideas suggestion on where and how to start ?

You could join the following views -
DBA_HIST_ACTIVE_SESS_HISTORY
DBA_USERS
DBA_HIST_SQLTEXT
To filter the history for last 30 days, use sample_time of DBA_HIST_ACTIVE_SESS_HISTORY view.
Something like -
SELECT
h.sample_time,
u.username,
h.program,
h.module,
s.sql_text
FROM
DBA_HIST_ACTIVE_SESS_HISTORY h,
DBA_USERS u,
DBA_HIST_SQLTEXT s
WHERE sample_time >= SYSDATE - 30
AND h.user_id=u.user_id
AND h.sql_id = s.sql_iD
ORDER BY h.sample_time
/

The very best and simplest way to fetch related data using below query.
SELECT H.SAMPLE_TIME,
U.USERNAME,
H.PROGRAM,
H.MODULE,
S.SQL_TEXT,
H.SQL_ID,
H.TOP_LEVEL_SQL_ID,
H.BLOCKING_SESSION_STATUS
FROM DBA_HIST_ACTIVE_SESS_HISTORY H, DBA_USERS U, DBA_HIST_SQLTEXT S
WHERE H.SAMPLE_TIME >= SYSDATE - 30
AND H.SQL_ID = S.SQL_ID
--AND H.PROGRAM IN ('Toad.exe', 'SQL Developer')
--AND U.USERNAME ='YOUR_USERNAME'
ORDER BY H.SAMPLE_TIME DESC
In the above code you can also fetch data based on your requirements as below.
1. Custom user data: Just modify YOUR_USERNAME with your real username.
2. Program: Program name can be anything like SQL Developer or JDBC Thin client to identify from which client the queries are getting triggered, but optional.
Hope it will help and answer to your question. Thanks :)

Related

I'd like to return a single row in a query that joins two tables through a one to many relationship

This is an oracle system. I have a client table (one) and an account table (many). Frankly, I really just want to query the client table but due to poor design, there is a data element that I need for the client table that is only present on the account table - it will be the same value for all accounts for that client so I really just need to return one account row but I'm having problems accomplishing this. Here is the query I tried:
Select
c.client_num,
c.client_name,
a.agency_value
from client c
inner join account a on c.client_num = a.client_num
where a.account_num in (select a2.account_num from account a2 where rownum = 1)
You need to explicitly designate how to pick one record out of many. Here's one method - use MAX
Select
c.client_num,
c.client_name,
(SELECT
MAX(a.agency_value) agency_value
FROM account a
where c.client_num = a.client_num
-- not sure if this line is required - if not please remove
and a.account_num in (select a2.account_num from account a2 where rownum = 1)
) agency_value
from client c
Keep in mind that by implementing this you are "cementing" your bad table design.
Are you absolutely certain that there is only ever one agency_value? use query to find any clients that have more than one agency:
SELECT
a.client_num,
COUNT(DISTINCT a.agency_value) CountOfAgencyValues,
MAX(a.agency_value) max_agency_value,
MIN(a.agency_value) max_agency_value
FROM account a
GROUP BY a.client_num
HAVING COUNT(DISTINCT a.agency_value) > 1
With your input and doing some playing around on my own, here is the code that ultimately addressed my need:
select
c. client_num,
(select a.agency_value
from account a
where a.client_num = c.client_num
and rownum = 1)
from client c

Fetch sql query with Machine Name

I want to fetch sql query with machine name where sql query has been run and machine name can belong's to any user. Please guide how is it possible to get that by joing tables like DBA_hist_sql or any other table.
I can suggest such variant
select
s.sql_id,
s.sql_text,
d.machine
from
v$sql s,
dba_hist_active_sess_history d
where
d.sql_id = s.sql_id
Maybe there is better variant or more related to your question. I hope it wil be helpful for you.
I let you links on documentation of these views.
DBA_HIST_ACTIVE_SESS_HISTORY
V$SQL
You can join DBA_HIST_ACTIVE_SESS_HISTORY and DBA_HIST_SQLTEXT , as long as the sql has been captured in the workload repository.
In the DBA_HIST_ACTIVE_SESS_HISTORY you have the field MACHINE, where you got the value of SYS_CONTEXT('userenv','host') .
You can join both views by sql_id.
However, the query will not be registered on the workload repository if it's not meaningful. You can modify this behaviour by changing settings of AWR using DBMS_WORKLOAD_REPOSITORY.MODIFY_SNAPSHOT_SETTINGS
An example
select
distinct s.sql_id,
s.sql_text,
d.machine ,
u.username ,
d.program
from
gv$sql s inner join dba_hist_active_sess_history d
on ( d.sql_id = s.sql_id and S.INST_ID = D.INSTANCE_NUMBER )
inner join dba_users u on ( D.USER_ID = U.USER_ID )
where
u.username = '&1'
S.SQL_ID = '&2'
order by D.SAMPLE_TIME desc
You can apply the filter by username or sql_id, or both. keep in mind that the field USERNAME will show you the Oracle user who executed the query, not the operating system user behind that connection.

How to retrieve data from 3 tables using sub query oracle SQL

I want to retrieve users name and there responsibility_key where there end_date is null and i want to convert it to (sysdate+1) using nvl but i am only able to retrieve the responsibility_key not the name please help.
The error in the image says "column ambiguously defined". Take a close look. Your last END_DATE could refer to either the u alias or the table from the subquery. Change it to match the rest of your subquery (FIND_USER_GROUPS_DIRECT.END_DATE)
EDIT
Your query is
select u.USER_NAME, d.responsibility_key from FND_USER u,FND_RESPONSIBILITY_VL d
where responsibility_id in(
select responsibility_id from
FND_USER_RESP_GROUPS_DIRECT WHERE END_USER_RESP_GROUPS_DIRECT.END_DATE=nvl(END_DATE,sysdate+1)) and
u.END_DATE=nvl(END_DATE,SYSDATE + 1)
;
The query isn't formatted, which makes it hard to read.
Not all columns are qualified with table name (or aliases), as mentioned in the comments.
The query currently uses an implicit join.
The query is impossible to understand without seeing the table definitions (desc [table_name]).
For points 1 and 2, a properly formatted query will look something like
select u.user_name, d.responsibility_key
from
fnd_user u,
fnd_responsibility_vl d
where
d.responsibility_id in (
select urgd.responsibility_id
from
fnd_user_resp_groups_direct urgd
where
urgd.end_date = nvl(u.end_date, sysdate+1)
) and
u.end_date = nvl(urgd.end_date, sysdate + 1)
;
This makes it easier to read and in addition to this, you can see that without table definitions I guessed (see point 4) as to which tables the end_date column belongs in your query. If I had to guess, so does Oracle. That means you have an ambiguity problem. To fix it, take a close look at the end_date column as it appears in your original query and where you do not prefix it with anything, you need to prefix it with the appropriate alias (after you have aliased all your tables).
For point 3, you can write your query more clearly with an explicit join and by using aliases for all columns. As for the explicit join I have no idea what your tables look like but one possibility is something like
select u.user_name, d.responsibility_key
from fnd_user u
join fnd_responsibility_vl d
on u.id = d.user_id
where
d.responsibility_id in (
select responsibility_id
from fnd_user_resp_groups_direct urgd
where
urgd.end_date = nvl(u.end_date, sysdate+1)
) and
u.end_date = nvl(urgd.end_date, sysdate+1)
;
If you follow these points you will get to the root of the error.

cascading Input Control sql query return error: "ORA-01427: single-row subquery returns more than one row"

looking for solution on my sql query error.I'm trying to create second cascading Input Control in JaspersoftServer. The first Input Control works fine, however when I try to create a second cascade IC it returns with the error. I have 3 tables (user, client, user_client), many to many, so 1 linked table (user_client) between them.The 1st Input Control (client) - works well, end user will select the client, the client can have many users, so cascade is the key. Also, as the output, I would like to get not the user_id, but user's firstname and the lastname as one column field. And here is where i'm stuck. I'm pretty sure it is simple syntaxis error, but spent a good couple of hours to figure out what is wrong with it. Is anyone can have a look at it please and indicate where is the problem in my query ?! So far I've done:
select distinct
u.user_id,(
SELECT CONCAT(first_name, surname) AS user_name from tbl_user ),
c.client_id
FROM tbl_user u
left join tbl_user_client uc
on uc.user_id = u.user_id
left join tbl_client c
on c.client_id = uc.client_id
where c.client_id = uc.client_id
order by c.client_id
Thank you in advance.
P.S. JasperServer + Oracle 11g
You're doing an uncorrelated subquery to get the first/last name from the user table. There is no relationship between that subquery:
SELECT CONCAT(first_name, surname) AS user_name from tbl_user
... and the user ID in the main query, so the subquery will attempt to return every first/last name for all users, for every row your joins find.
You don't need to do a subquery at all as you already have the tbl_user information available:
select u.user_id,
CONCAT(u.first_name, u.surname) AS user_name
c.client_id
FROM tbl_user u
left join tbl_user_client uc
on uc.user_id = u.user_id
left join tbl_client c
on c.client_id = uc.client_id
where c.client_id = uc.client_id
order by c.client_id
If you want to put a space between the first and last name you'll either need nested concat() calls, since that function only takes two arguments:
select u.user_id,
CONCAT(u.first_name, CONCAT(' ', u.surname)) AS user_name
...
... or perhaps more readably use the concatenation operator instead:
select u.user_id,
u.first_name ||' '|| u.surname AS user_name
...
If the first control has selected a client and this query is supposed to find the users related to that client, you're joining the tables the wrong way round, aren't you? And you aren't filtering on the selected client - but no idea how that's actually implemented in Jasper. Maybe you do want the entire list and will filter it on the Jasper side.

PostgreSQL - migrate a query with 'start with' and 'connect by' in oracle

I have the following query in oracle. I want to convert it to PostgreSQL form. Could someone help me out in this,
SELECT user_id, user_name, reports_to, position
FROM pr_operators
START WITH reports_to = 'dpercival'
CONNECT BY PRIOR user_id = reports_to;
A something like this should work for you (SQL Fiddle):
WITH RECURSIVE q AS (
SELECT po.user_id,po.user_name,po.reports_to,po.position
FROM pr_operators po
WHERE po.reports_to = 'dpercival'
UNION ALL
SELECT po.user_id,po.user_name,po.reports_to,po.position
FROM pr_operators po
JOIN q ON q.user_id=po.reports_to
)
SELECT * FROM q;
You can read more on recursive CTE's in the docs.
Note: your design looks strange -- reports_to contains string literals, yet it is being comapred with user_id which typicaly is of type integer.

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