SQL & PL/SQL :: Dynamically Build SELECT Statement

May 8, 2013

We have an requirement to build (XML) Select statement dynamically based on the mapping table (which is in hierarchy format)

I have removed xml keyword, so query will not work. but need procedure which will recursively check mapping table (parent and child table) and build below given select statement.

Example 1:
SELECT dname,
(select ename,

[Code]....

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Dynamically Build (recursive) Xml SQL Statement

May 3, 2013

We have an requirement to create xml data for entire database (selected tables) which are in hierarchy.Procedure should read node_mapping table having parent and child tables relationship info and build XML Select statement.

Currently it is building SQL statement whenthere are one parent having multiple childrens i.e Dept having emp, emp_act, emp_rsch..but when child node are having childrens then it is not working - it has to repeatedly call this procedure (recursive) and build below given SQL statement.

1. To change procedure to build xml sql statement when there are multiple childrens to child nodes (hierarchy)
2. To format the output in xml data

We are using ORACLE 11G and WINDOWS 7

CREATE TABLE node_mapping
(
NODE_ID NUMBER(5) PRIMARY KEY,
PARENT_NODE VARCHAR2(100),
CHILD_NODE VARCHAR2(100),
PARENT_NODEID VARCHAR2(50),
CHILD_NODEID VARCHAR2(50)
[code]....

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Execute Immediate To Dynamically Build A Trigger?

Apr 25, 2011

We have developed a code which builds a trigger on a atble dynamically at run time usinf Dynamic SQL command Execute immediate.

create or replace
PROCEDURE GENERATE_TRIGGER
(
P_TNAME IN VARCHAR2

[Code].....

I am not usre if the error is due to insufficient privileges as we are able to build tabl;e in the system dynamically using the above mentioned command.

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SQL & PL/SQL :: Oracle Select Build Table?

Jun 21, 2011

select a default table in oracle as we do in teradata, below is the syntax of teradata.

select 'XXX' as Curr,
'BUS OBJ ' as acq_nm
from (select 1 as one) Union
select 'ALL' as Curr, from (select 1 as one).

so I need the same select in oracle.

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Dynamically Executing A Select Command

Aug 4, 2010

How to dynamically execute a select command whether it is retrieved a single record or multiple record in oracle database 10g. i have tried with the command execute immediate but it was not successful.

is it possible can i delete or drop multiple tables in a single drop and delete statement.

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SQL & PL/SQL :: Select Statement From Schemas In MERGE Statement In USING Clause

Sep 13, 2013

In the following merge statement in the USINg clause...I am using a select stament of one schema WEDB.But that same select statement should take data from 30 schemeas and then check the condition below condition

ON(source.DNO = target.DNO
AND source.BNO=target.BNO);

I thought that using UNIONALL for select statement of the schemas as below.

SELECT
DNO,
BNO,
c2,
c3,
c4,
c5,
c6,
c7
[code]....

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How To Give Table Name Dynamically In A Select Query

Aug 23, 2012

I have 12 different tables

Record_jan
Record_feb
.
.
.
Record_nov
Record_dec

Based on the month i need to do some i/o operations from these table.

For eg: If it is january then Record_jan table should be accesed or for nov Record_nov table should be accesed.

If I try to store the table name in some variable and then give the variable name in place of table name then it gives error.

var:=Record_month;
Select * from var;

this gives error.

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SQL & PL/SQL :: How To Select A Column Dynamically Inside A Query

May 1, 2011

I have a problem executing a function.

There are two tables,

1. Table with column names of a second table mapped to certain variables.

ex: Table1
col1, var1
col2, var2
col3, var3
--------
--------

2. Table with the values for columns as given in table 1 ex:

col1, col2, col3, col4, col5,
a , aa , 1 , x1 , p
b , ab , 2 , x2 , q
c , ac , 3 , x3 , r

I have to select values from table2.col1 do some processing and calculate values and store it in a table then do the same thing with col2 and so. This needs to be done for all the columns that appear in table1.For example in table 1 i have only three columns mentioned thus i have to process col1, col2 and col3 from table2. col4 and col5 will not be processed since they do not appear in the first table.

The problem is i have hundred columns in table 2 and the user can add up to hundred columns in table 1 as and when it is required.

I have created a cursor to first select column name from table 1 where variable is not null.For each value in cursor i put it in a local variable.

Second step is to select values from table2 where instead of column name i am using the local variable.But the problem is instead of choosing values from col1 the query returns the value as col1 (the value of local variable)

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SQL & PL/SQL :: Select Columns From Different Tables Dynamically In A Function

Jan 25, 2013

im 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.

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SQL & PL/SQL :: Select Dynamic Column Names In Select Statement In Function?

Jul 4, 2010

i want to select dynamic column names in my select statement in my function.

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SQL & PL/SQL :: Select Statement Is Blocking A Delete Statement

Jan 11, 2012

I am using JDBC to run a few queries from my Java program (multi-threaded one).I am facing an issue where a select statement is blocking a delete statement. From the java code point of view, there are 2 different threads accessing the same tables (whith different DB connection objects).

When the block occurs (which i was able to find out from the java thread dump that there is a lock on oracle), the below is the output:

SQL> SELECT TO_CHAR(sysdate, 'DD-MON-YYYY HH24:MI:SS')
2 || ' User '||s1.username || '@' || s1.machine
3 || ' ( SID= ' || s1.sid || ' ) with the statement: ' || sqlt2.sql_text
||' is blocking the SQL statement on '|| s2.username || '@'
4 5 || s2.machine || ' ( SID=' || s2.sid || ' ) blocked SQL -> '
6 ||sqlt1.sql_text AS blocking_status FROM v$lock l1, v$session s1, v$lock l2 ,
7 v$session s2,v$sql sqlt1, v$sql sqlt2
8 WHERE s1.sid =l1.sid
9 AND s2.sid =l2.sid AND sqlt1.sql_id= s2.sql_id
AND sqlt2.sql_id= s1.prev_sql_id AND l1.BLOCK =1
10 AND l2.request > 0 AND l1.id1 = l2.id1 AND l2.id2 = l2.id2;
[code]...

From the above it can be seen that a select statement is blocking a delete. Unless the select is select for Update, it should not block other statements is not it ?

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SQL & PL/SQL :: Why Blind Select Is Better Than Conditional Select Statement

Dec 29, 2010

Why Blind select is better than Conditional select Statement?

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SQL & PL/SQL :: Insert Into Statement Doesn't Insert All Rows Return By Select Statement?

Jan 12, 2011

If i inserted the values in table it gets inserting very few rows only.I dont know y it is?

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If Statement In Select?

Mar 22, 2013

simply select and works great:

select 'CARAT Issue Open' issue_comment, i.issue_id, i.issue_status, i.issue_title, i.ISSUE_summary ,i.issue_description, i.severity,gcrs.Area_name, gcrs.sector_name,

substr(gcrs.stream_name,1,case when instr(gcrs.stream_name,' (')=0 then 100 else instr(gcrs.stream_name,' (')-1 end) ISSUE_DIVISION,

case when gcrs.STREAM_NAME like 'NON-GT%' THEN 'NON-GT' ELSE gcrs.STREAM_NAME END as ISSUE_DIVISION_2

from table(f_carat_issues_as_of('31/MAR/2013')) i inner join v_gcrs_with_stream gcrs on i.segment_id = gcrs.segment_id

where UPPER(ISSUE_STATUS) like '%OPEN%'

Now I want to callte two columns:ISSUE_DIVISION and ISSUE_DIVISION_2

if they are equal in new columns should be value 1 if are not equal should be 0,how can I do it ?

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Select Statement Errors

May 5, 2010

I have a question about select statements, as I am new to them and don't know how to work all the commands yet.

I'm making a select statement that is about half right... it is shown below:

select t.warehouse_id,
t.quantity_on_hand,
c.product_name
from pahtest3.inventories t
join pahtest3.product_information c using (product_id)
WHERE warehouse_id in (7);

I need to take this select statement and make it so it shows all the products that don't have any quantities in the warehouse in addition to the ones that are already being shown in that select statement.

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Format Of Select Statement

Jun 15, 2007

decode (a.cancel_time,'',sum ((to_date('23:59','hh24:mi') - a.alarm_time)*24*60), sum((a.cancel_time - a.alarm_time)*24*60)) Duration,

After executing this statement. I get negative values if cancel time is null

I want to subtract alarm_time by 24 hours, if cancel time is null. If not null then cancel-time - alarm_time

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How To Set Timing On For Every SELECT Statement

Aug 23, 2008

how to set the timing on for all SELECT statements in a procudeure...and i want that should come as a output for very SELECT statement slong with my original output.

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SQL & PL/SQL :: Using Alias In Same SELECT Statement

Sep 1, 2011

I have a need to use the Alias name of a column within the same select statement( because I can't have another select statement using the first select as table - BO tool limitation).

Ex:

Select dept_id, agency, sum(quantity) as "sum_qty"
where sum_qty > 500;

Currently oracle won't allow using alias name Sum_qty in the same select statement. Is there a way to use alias within the same select statement?

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SQL & PL/SQL :: Variable In Select Statement

Jul 5, 2011

I'm trying to write a simple query so I can do some testing on my application. I am trying to do something like this:

SELECT
Location,
LEVEL,

FROM
S_ORG_EXT

where
Location = 'North America' and LEVEL ='Software'
OR location = 'North America'
and Active = 'N'

in the where statement, I have put in the 'Active' that isn't a column. I want to be able to be able to change that in the select part. But I am not able to do so.

this is what I have tried:
SELECT
Location,
LEVEL,
Active = 'N' --I want to change this in the to N or Y so I can get different results.

FROM
S_ORG_EXT

where
Location = 'North America' and LEVEL ='Software'
OR location = 'North America'
and Active = 'N'

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SQL & PL/SQL :: Select In Case Statement

Feb 11, 2011

I have the following tables:

create table lookups (code varchar2(20), amount number);

insert into lookups values ('Rent' , 500);
insert into lookups values ('Breakpoint' , 10);

create table products (id number, cost number, year varchar2(4));

insert into products values (1, 1000, '2011');
insert into products values (1, 2000, '2011');
insert into products values (2, 100, '2011');
insert into products values (3, 50, '2011');

commit;

I want to write a query which lists the IDs and the sum(cost), and a Y/N indicator which is set to 'Y' IF sum(cost) > ( (lookups.rent value) * (100 - lookups.breakpoint value))/100

I have written this query:

SELECT id,
sum(cost)cost,
year,
CASE
WHEN cost >
((SELECT amount
[code]....... ORDER BY id;

This returns

ID COST YEAR YN
--------- ---------- ---- -
1 1000 2011 Y
1 2000 2011 Y
2 100 2011 N
3 50 2011 N

The YN is correct, but it needs to sum the amounts. So there should only be one row for id1 = 3000.e.g.

ID COST YEAR YN
--------- ---------- ---- -
1 3000 2011 Y
2 100 2011 N
3 50 2011 N

I am not sure how to do this. Or is there a better way of doing this than using CASE.

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SQL & PL/SQL :: How To Add Two More Columns Into Select Statement

May 6, 2011

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%');

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SQL & PL/SQL :: Cursor Select Statement?

Apr 28, 2010

I have a cursor in a procedure that selects columns from a table on a remote Oracle database using a database link. It all works fine when the table name and database link name is 'hard coded' into the procedure but what I would like to achieve is have the select statement lookup the table name and database link name from a column in another table. See example below

CURSOR c_total_bookings IS
SELECT personnel_id,
surname,
forenames,
birth_date,

[code]...

What I would like to do is replacecompany_bookings@remote.linkwith a variable that takes its value from another table.

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SQL & PL/SQL :: How To Use CASE In SELECT STATEMENT

Jun 24, 2011

select GAM.FORACID,
SOL.SOL_DESC,
GAM.ACCT_NAME,
LHT.LIM_SANCT_DATE,
LHT.SANCT_LIM,
to_char( GAM.CLR_BAL_AMT,'9,99,999.99'),

[code]...

i am getting error like this
ERROR at line 9:
ORA-00911: invalid character

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PL/SQL :: Execute Immediate On SELECT Statement

May 3, 2013

Execute Immediate on SELECT Statement

declare l_stmt VARCHAR2(1000);
begin
l_stmt := 'Select * from mytable' ;
EXECUTE IMMEDIATE l_stmt;
--- dbms_output.put_line( l_stmt);
end;

it is not returning any output. I have hardcoded the table name here where as in real time Mytable name will differ.

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PL/SQL :: Variables In SELECT Statement

Feb 19, 2013

I was given a SQL query to develop another query that will need to do something similar. The query I was given I believe is a stored procedure. It is PL/SQL and has a SELECT statement that looks like

SELECT :var1 AS var1
FROM t1
WHERE
:var1 = 1

In the past I have seen where variables can be used in the WHERE clause like

SELECT c1
FROM t1
WHERE
c1 = :my_column_valueand this makes sense to me.

Usually :my_column_value is declared in the DECLARE block of the PL/SQL. In the query I was given, :my_column_value is not declared in any DECLARE blocks (maybe I wasn't given the entire code??). But even if it was, that would be even more confusing because in the DECLARE block it could be assigned one value and then set to another value in the WHERE clause???

The first query doesn't make sense to me and when I run it as plain SQL I get an error like "SP2-0552: Bind variable "var1" not declared. I am guessing that such a syntax is not valid for regular SQL?

The only thing I can gather that the first query does is something along the lines of

SELECT 1 as var1

so it will output a 1 for every row. Not always that interesting of a query, but it is needed sometimes, I know. But I still don't understand this type of assignment.

So what's going on here? I'd be happy to look it up and read about it myself, but I don't know what to search for.

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PL/SQL :: Select Statement For Last Name Added

Nov 12, 2013

i want a select statement to retrieve the last name added into the "ename" column .i mean :if i insert "jack" into "ename" column , i want to write  a select statement to retrieve that last name while i do not know it is jack or any other name ? 

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SQL & PL/SQL :: Function With DML In Select Statement?

Sep 14, 2013

How to use a function with DML operations in it in a select statement.

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PL/SQL :: Single Select Statement

Apr 22, 2013

I am trying to find the best solution for the following problem

I have a table called HIERARCHY with 3 columns.

col1 col2 col3
------------------------
1
1 2
1 2 3
4 5
6 7 8

I would like to check if the table contains invalid records. Col1 , Col2 and Col3 are seen as hierarchy levels and col1 is the top level.

For instance record 1,2,3 (level3) is valid because it exists record 1,2 (level 2). Moreover 1,2 record (level 2) is valid because it exists record 1 (top level).
However 4,5 and 6,7,8 are not valid as higher levels are not completed.

How can I check in a single SELECT statement if the table contains invalid records? Maybe analitical functions or regular expressions?!

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Using Declared Variable Within Select Statement?

Apr 5, 2011

here is what i am trying to do: im as using oracle 8 with sqltool

i have a Very large query. and i notice that many things are repeating. so i want to add them to a variable, instead of re-typing them. for example:

select SomeID from SomeTable;

i want SomeID to be put into a variable. but i still want to be able to get a normal select query at the end so that i can see the returned value:

i tried things like:
declare x number;
begin
set x=45454
select x from SomeTable;
end;

but could not get it to work.

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TOAD - LOOP With A Select Statement

Oct 19, 2011

I can work with 'straight' query's etc., but now I want to make a query with a loop. I have made a simple one to demonstrate what I want but the real one is working is working by it self but I want to get it work with a loop.

This is the simpel version:

DECLARE

P_UID NUMBER;
Max_UID NUMBER := 42220;

BEGIN

P_UID := 42210;
LOOP
select *
from contract lc
where lc.UIDCONTRACT = P_UID;

P_UID := P_UID + 1;
EXIT WHEN P_UID > Max_UID;
END LOOP;
END;

The error I get is:

Line 10, column 9:

PLS-00428: an INTO clause is expected in this SELECT Statement.

So I know you can declare a variable and then CONTRACTID INTO v_contractID.

But if I have to put every field in a variable what is then the advantage of a loop. So I expect that I'm on the wrong road and not understand how this works.

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