I need to dynamically create a query and execute using Execute Immediate, I am facing the problem in appending the Vaaray variable. Getting Error
pls-00306 wrong number or types of arguments in call to ||
Vaaray //Its a type number
select ver_id bulk collect into Ver_Array from ( Select id from table)
No issue with below query as only id variable is used:
Execute Immediate 'Select ID, name , Date, time
from table
where id = ' || v_UC2_id
Error with below query
Execute Immediate 'Select ID, name , Date, time
from table
where id = ' || v_UC2_id
|| ' and ver_id in ( SELECT * FROM TABLE ( '
|| Ver_Array
|| ' )'
Tried to extract the query and concatenate in comma saperated values but the final result comes as String but field used in query is Number
Not sure how to handle this in dynamic query
The SQL you're writing is concatenating an array with a string, so you get an error.
You can do it like this:
create or replace type vat is varray(10) of number:
/
declare
ivat vat:=vat(1,2,3);
res number;
begin
execute immediate 'select sum(rn) from tarr where rn in (select column_value from table (:varrt))' into res using ivat;
dbms_output.put_line(res);
end;
/
Here I'm selecting just one row and value. If you have multiple rows and columns, then you better declare a cursor for this SQL, and loop thru it.
Related
Hello again I need some help,
I have table where in column "query" is defined query statement. I would like to run it and as output get the result.For example:
Create table table1
(
ID Number,
Query Varchar2(400)
)
insert into table1(id,query) values (1,'select name from table2 where table2.id=table1.id and table2.type = variable');
create table table2
(ID number,
Name varchar2(400),
Type Varchar2(400)
)
insert into table2 values (1,'Mathew','M');
insert into table2 values (1,'Thomas','G');
insert into table2 values (2,'Jerry','P');
For now query :
'select name from table2 where table2.id=table1.id and table2.type = variable'
should return only "Mathew" (assuming variable as 'M' - procedure variable input)
As procedure input I want to have variable which I will replace somehow in query statement.
Could you give me some tips how to handle with that?
------------Edit
I did stmh like that:
create or replace procedure queryrun
(var1 varchar2) as
str VARCHAR2(200);
BEGIN
execute immediate 'select replace(query,''variable'','''||var1||''') from table1' into str;
dbms_output.put_line('Value is '||str);
END;
But as result it present query... no result of select statement...
You are only selecting your query, not running it; and you're replacing the string "'variable'" - including the single quotes - with your value, but your original query string doesn't have the single quotes around it - so nothing matches.
You should not really substitue a hard-coded value anyway. Change your stored query to include a bind variable placeholder instead:
insert into table1(id,query)
values (1,'select name from table2 where table2.id=table1.id and table2.type = :variable');
Although that query is invalid anyway - you don't have table1 defined in the from clause or a join clause. When you have a valid query you can run standalone, use that, but with a bind variable (denoted by the leading colon).
But let's assume you have a valid query string in your table, that will only return one row, say:
insert into table1(id,query)
values (1,'select name from table2 where type = :variable');
Your procedure then needs a local variable to hold that query string. You select your query into that using static SQL, and then use dynamic SQL via execute immediate to run the query from that string, and provide the bind value with the using clause. The result goes into another local variable, which you are already doing.
So a simple version might look like this:
create or replace procedure queryrun (p_var1 varchar2) as
l_query table1.query%type;
l_name table2.name%type;
begin
select query into l_query from table1 where id = 1;
execute immediate query into l_name using p_var1;
dbms_output.put_line('Value is ' || l_name);
end;
This is obviously rather contrived. If you have multiple queries in your table, and perhaps pass a second ID variable into the procedure to choose which one to run, they would all have to take a single bind variable, and would have to all be able to put the result into the same type and size of result variable. You're also restricted to queries that return exactly one row. You can adapt and extend this of course, but hopefully this will get you started.
You can have bind variable and use plsql execute immediate.
Examples:
http://www.dba-oracle.com/t_oracle_execute_immediate.htm
When I simply write a query in which it has code like
Select * from ..
where ...
AND gfcid in ( select regexp_substr('1005771621,1001035181'||',','\d+',1,level)
from dual
connect by level <= (select max(length('1005771621,1001035181')-length(replace('1005771621,1001035181',',')))+1
from dual) )
It works.
But I want to make it dynamic query in oracle stored procedure. I did like this:
GDFCID_STRING := ' select regexp_substr('
|| '1005771621,1001035181'
|| ','
|| ','
|| '\d+'
|| ',1,level) from dual connect by level <= (select max(length('
|| '1005771621,1001035181'
|| ')-length(replace('
|| '1005771621,1001035181'
|| ','
|| ','
|| ')))+1 from dual)';
Select * from ..
where ...
AND gfcid in (GDFCID_STRING)
But it does now work.
As far as I understand your problem, you need a method to accept a comma-delimited string as an input, break it into a collection of integers and then compare a number (read: integer) with the values in this collection.
Oracle offers mainly three types of collections- varrays, nested tables and associative arrays. I would explain how to convert a comma-delimited string into a nested table and use it to query or compare.
First, you need to define an object type in the schema. You can write queries using this type only if you define it at schema level.
CREATE OR REPLACE TYPE entity_id AS OBJECT (id_val NUMBER(28));
/
CREATE OR REPLACE TYPE entity_id_set IS TABLE OF entity_id;
/
Next, define a function like this:
FUNCTION comma_to_nt_integer (p_comma_delimited_str IN VARCHAR)
RETURN entity_id_set IS
v_table entity_id_set;
BEGIN
WITH temp AS (SELECT TRIM(BOTH ',' FROM p_comma_delimited_str) AS str FROM DUAL)
SELECT ENTITY_ID(TRIM (REGEXP_SUBSTR (t.str,
'[^,]+',
1,
LEVEL)))
str
BULK COLLECT INTO v_table
FROM temp t
CONNECT BY INSTR (str,
',',
1,
LEVEL - 1) > 0;
RETURN v_table;
END comma_to_nt_integer;
You are done with the DDL required for this task. Now, you can simply write your query as:
SELECT *
FROM ..
WHERE ...
AND gfcid in (table(comma_to_nt_integer(GDFCID_STRING)));
In general you can use
execute immediate v_your_sql_code;
to execute dynamic SQL within PL/SQL, but from your question I'm not really aware what you want to do.
Edit:
y_your_sql_code := 'Select yourColumn from .. where ...AND gfcid in ('||GDFCID_STRING||')';
execute immediate v_your_sql_code into v_result;
You'll have to define v_result in the right datatype, you could use more then one result variable if you need more result columns, you'll need i.e. a complex type if you can retrieve more than one row.
Here is my code:
create or replace
procedure postGateway (flgManual in nvarchar2, segmentID in number) as
sequel string(2000);
cursor download_cursor is
select downloadid from ipcsdd_download_process where status LIKE 'W' OR status
LIKE 'E';
cursor table_cursor is
select table_name from user_tab_columns where column_name = 'DOWNLOADID' and
table_name like 'IPCSDD%' OR table_name like 'IPCSCUSTDD' group by table_name;
begin
for download in download_cursor
loop
dbms_output.put_line('DownloadID: ' || download.downloadid );
for usertable in table_cursor
loop
sequel:=' select * FROM'||usertable.table_name||'where downloadid='||download.downloadid;
execute immediate sequel;
dbms_output.put_line(' select * from'||usertable.table_name||'where downloadid='||download.downloadid);
end loop;
end loop;
end postGateway ;
What I doing here is: In first cursor I am trying to get the downloadids whose status are W or E. In the second cursor I am trying to get the tables which have downloadid coloumn and those table name should start with IPCSDD or IPCSCUSTDD.
Now I have to write a query such that In every table starting from IPCSDD that i get from cursor 2 i need to see if a data is present for the downloadid that i get from cursor 1. I tried writing dynamic sql but it gives me error saying "00923. 00000 - "FROM keyword not found where expected"" .
How can I achieve this?
Thanks
You simply neglected to add spaces after and before your keywords, with a space after FROM and a space before where:
sequel:=' select * FROM '||usertable.table_name||' where downloadid='||download.downloadid;
I have 2 tables with same set Column Name (52+ coulmns) . I need to write an Oracle function to compare whether any records get changed between these columns. EMP_ID is the primary Key
I'm trying to use the below function, but it is giving me incorrect result,
I'm calling the funcaiton like this:
get_data_change (emp_id, 'DEPT_NAME');
get_data_change (emp_id, 'PHONE_NUMBER');
Function I have created:
CREATE OR REPLACE function get_data_change (
in_emp_id varchar2, in_Column_Name varchar2)
return char is
v_data_changed char;
begin
select eid, in_Column_Name
into v_table1_eid, v_table1_Column_Value
from table 1
where eid=in_emp_id;
Select eid, in_Column_Name
into v_table2_eid, v_table2_Column_Value
from table 2
where eid = in_emp_id;
if ( v_table2_Column_Value != v_table1_Column_Value)
then
v_data_changed := 'Y'
else
v_data_changed :='N'
endif
return v_data_changed
end
end get_data_change;
in_Column_Name is a string variable to which you are assigning a literal string value such as 'DEPT_NAME'.
Therefore, your queries are interpreting this as a literal string value and returning the same thing into v_table1_Column_Value.
To do what you expect you need to use Dynamic SQL, something like:
EXECUTE IMMEDIATE 'select eid, ' || in_Column_Name
|| ' from table1 where eid=:P_emp_id'
into v_table1_eid, v_table1_Column_Value
using in_emp_id;
You need to be aware of the possibility of SQL Injection here - i.e. the value of in_Column_Name cannot be supplied by end-users.
I have been trying to create PL/SQL statement that creates a dynamic query in order to get dynamic columns. Since I don't have much idea about these Oracle PL/SQL statements; I am confused about few things.
Is it mandatory to have stored procedure for creating dynamic queries ?
The following query does not throw any error and even results nothing. What I am trying to do in the following query is to get sum of FKOD_AMOUNT according to FKBAB_SOURCE_ID which is foreign key for PFS_SOURCE_ID.
declare
sql_query varchar2(3000) := 'select FKOM_OFFICE_ID,FKBAM_BUDGET_ID ';
begin
for x in (select distinct PFS_SOURCE_ID,PFS_SOURCE_ENG from PBS_FC_SOURCE WHERE PFS_UPPER_SOURCE_ID!=0 )
loop
sql_query := sql_query ||
' , sum(case when FKBAB_SOURCE_ID = '||x.PFS_SOURCE_ID||' then FKOD_AMOUNT ELSE 0 end) as '||x.PFS_SOURCE_ENG;
dbms_output.put_line(sql_query);
end loop;
sql_query := sql_query || ' FROM FMS_K_OFFICEWISE_DTL
JOIN FMS_K_OFFICEWISE_MST ON FMS_K_OFFICEWISE_MST.FKOM_OFFICE_MST_ID=FMS_K_OFFICEWISE_DTL.FKOD_OFFICE_MST_ID
JOIN FMS_K_BUDGET_ALLOCATION_DTL ON FMS_K_BUDGET_ALLOCATION_DTL.FKBAD_BUDGET_ALLOC_DTL_ID=FMS_K_OFFICEWISE_DTL.FKOD_BUDGET_ALLOC_AD_ID
JOIN FMS_K_BUDGET_ALLOCATION_MST ON FMS_K_BUDGET_ALLOCATION_MST.FKBAM_BUDGET_ALLOC_ID=FMS_K_BUDGET_ALLOCATION_DTL.FKBAB_BUDGET_ALLOC_ID
JOIN PBS_FC_BUDGET ON PBS_FC_BUDGET.PFB_BUDGET_ID=FMS_K_BUDGET_ALLOCATION_MST.FKBAM_BUDGET_ID
GROUP BY FKOM_OFFICE_ID,FKBAM_BUDGET_ID ';
dbms_output.put_line(sql_query);
end;
How can I execute 'sql_query' ?
To have an answer(removed my comments), this is pl/sql, not a select statement, so you can't just run it.
With execute immediate you can use INTO clause to store the results into some variables or arrays.
But you may make the query a cursor, put the cursor into a pipelined function and then
select * from table(your_pipelined_function)