Dynamic PL SQL query
Hello
I want to run and store the results of a dynamic sql query in a strored procedure.
I get the following variables of the user running: v_column_names, v_table_name, v_col, v_value
The query will be like:
v_query: = 'SELECT'. v_column_names | ' A ' | v_table_name | ' WHERE ' | v_col |' = ' | v_value;
for example v_column_names: = 'ACCOUNT_NUM, SYSTEM_ID, ENTITY_ID ';
v_table_name: = 'ACCOUNT '.
v_col: = 'COUNTRY_CODE ';
v_value: = "USA";
Here is what I tried
DECLARE
v_column_names VARCHAR (200): = 'ENTITY_ID, SYSTEM_ID, ACCOUNT_NUM;
v_table_name VARCHAR (200): = 'ACCOUNT '.
v_col VARCHAR (200): = 'COUNTRY_CODE ';
v_value VARCHAR (200): = "'USA"';
TYPE column_record () IS RENDERING
VARCHAR2 (200) C1: = null;
C2 VARCHAR2 (200): = null;
C3 VARCHAR2 (200): = null
);
TYPE st_table IS TABLE OF column_record INDEX DIRECTORY.
pk_table st_table;
NUMBER of v1: = 1;
BEGIN
v_select: = 'SELECT'. v_column_names | ' A ' | v_table_name | ' WHERE ' | v_col |' = ' | v_value;
EXECUTE IMMEDIATE v_select COLLECT LOOSE pk_table.
I'm IN 1.pk_table.count LOOP
DBMS_OUTPUT. Put_line (pk_table (v1). (C1);
DBMS_OUTPUT. Put_line (pk_table (v1). (C2);
DBMS_OUTPUT. Put_line (pk_table (v1). (C3);
v1: = v1 + 1;
END LOOP;
END;
The number of column names in v_column_names is dynamic, so I need a way to store the results and then manipulate them.
I look forward to your reply.
EDIT: The real question:
1. in the settings I have pass the table name and the value of the primary key of the row I want to delete.
2. He then checks if this line is referenced anywhere, removes the reference, and then deletes the current line. This can go, until all the rows that are referenced are removed.
The above code, I have provided a small part of the largest of stored procedure.
Thank you all, I found the tips very helpful. I found a solution to my problem:
It generates all removal requests to remove a specific line. Not what I wanted, but this does not solve my problem.
The reason why is that I discovered that we do not use the ON DELETE CASCADE that we don't remove a record accidentally, I know we have an option to restore, but it is just in case something goes wrong.
Tags: Database
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------ ------------ ---------- ---------
20150115 20150101 17 A1
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17 20150101 20150115 20150101 A1
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------ ------------ ---------- -------- ------------ ----------
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Whenever you have a problem, please post a small example data (CREATE TABLE and only relevant columns, INSERT statements) of all the tables involved, so that people who want to help you can recreate the problem and test their ideas.
Also post the exact results you want from this data, as well as an explanation of how you get these results from these data, with specific examples.
Always say what version of Oracle you are using (for example, 11.2.0.2.0).
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2886750 wrote:
...
AND to_date (tbl1.end_date, 'YYYYMMDD')< to_date="" (tbl2.start_date,="">
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PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------------------------ Plan hash value: 967177145 -------------------------------------------------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | -------------------------------------------------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 54117 | 92M| 4435K (1)| 01:58:43 | | 1 | NESTED LOOPS OUTER | | 54117 | 92M| 4435K (1)| 01:58:43 | | 2 | NESTED LOOPS OUTER | | 54117 | 87M| 4261K (1)| 01:54:04 | | 3 | NESTED LOOPS OUTER | | 54117 | 86M| 4154K (1)| 01:51:13 | | 4 | NESTED LOOPS OUTER | | 54117 | 85M| 4111K (1)| 01:50:03 | | 5 | NESTED LOOPS OUTER | | 54117 | 84M| 3980K (1)| 01:46:33 | | 6 | NESTED LOOPS OUTER | | 54117 | 83M| 3937K (1)| 01:45:24 | | 7 | NESTED LOOPS OUTER | | 54117 | 81M| 3763K (1)| 01:40:44 | 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S_ORG_EXT_U3 | 1 | | 1 (0)| 00:00:01 | | 52 | TABLE ACCESS BY INDEX ROWID | S_ORG_EXT_X | 1 | 16 | 2 (0)| 00:00:01 | |* 53 | INDEX RANGE SCAN | S_ORG_EXT_X_U1 | 1 | | 2 (0)| 00:00:01 | |* 54 | INDEX UNIQUE SCAN | S_PARTY_P1 | 1 | 12 | 1 (0)| 00:00:01 | | 55 | TABLE ACCESS BY INDEX ROWID | S_ASSET_BU | 1 | 34 | 3 (0)| 00:00:01 | |* 56 | INDEX RANGE SCAN | S_ASSET_BU_U1 | 1 | | 2 (0)| 00:00:01 | |* 57 | INDEX UNIQUE SCAN | S_PARTY_P1 | 1 | 12 | 1 (0)| 00:00:01 | | 58 | TABLE ACCESS BY INDEX ROWID | S_ASSET | 1 | 37 | 2 (0)| 00:00:01 | |* 59 | INDEX UNIQUE SCAN | S_ASSET_P1 | 1 | | 2 (0)| 00:00:01 | | 60 | TABLE ACCESS BY INDEX ROWID | S_PROD_INT | 1 | 16 | 1 (0)| 00:00:01 | |* 61 | INDEX UNIQUE SCAN | S_PROD_INT_P1 | 1 | | 1 (0)| 00:00:01 | | 62 | TABLE ACCESS BY INDEX ROWID | S_ORG_EXT | 1 | 14 | 2 (0)| 00:00:01 | |* 63 | INDEX UNIQUE SCAN | S_ORG_EXT_U3 | 1 | | 1 (0)| 00:00:01 | | 64 | TABLE ACCESS BY INDEX ROWID | S_ASSET_X | 1 | 93 | 3 (0)| 00:00:01 | |* 65 | INDEX RANGE SCAN | S_ASSET_X_U1 | 1 | | 2 (0)| 00:00:01 | -------------------------------------------------------------------------------------------------------------------- Predicate Information (identified by operation id): --------------------------------------------------- 23 - filter("T9"."VER_NUM"=TO_NUMBER(:1)) 25 - access("T3"."ROW_ID"="T9"."VOD_ID") 27 - access("T14"."CFG_MODEL_ID"="T3"."OBJECT_NUM") 29 - access("T14"."PR_PROD_LN_ID"="T7"."ROW_ID"(+)) 31 - access("T14"."CG_PR_CTLG_CAT_ID"="T16"."ROW_ID"(+)) 33 - access("T16"."PAR_CAT_ID"="T10"."ROW_ID"(+)) 34 - filter("T23"."PAR_ASSET_ID" IS NULL AND "T23"."SERIAL_NUM" IS NOT NULL OR "T23"."X_PHONE_NUMBER" IS NOT NULL AND "T23"."PAR_ASSET_ID" IS NOT NULL) 35 - access("T23"."PROD_ID"="T14"."ROW_ID") 37 - access("T23"."ROW_ID"="T8"."PAR_ROW_ID"(+)) 39 - access("T23"."OWNER_CON_ID"="T11"."ROW_ID"(+)) 41 - access("T23"."PER_ADDR_ID"="T20"."ROW_ID"(+)) 43 - access("T23"."RTNG_DLR_ID"="T1"."PAR_ROW_ID"(+)) 45 - access("T23"."DLR_ID"="T4"."PAR_ROW_ID"(+)) 47 - access("T23"."PREF_SRV_DLR_ID"="T17"."PAR_ROW_ID"(+)) 49 - access("T23"."BILL_ACCNT_ID"="T18"."PAR_ROW_ID"(+)) 51 - access("T23"."OWNER_ACCNT_ID"="T21"."PAR_ROW_ID"(+)) 53 - access("T23"."OWNER_ACCNT_ID"="T6"."PAR_ROW_ID"(+)) 54 - access("T23"."PR_CON_ID"="T12"."ROW_ID"(+)) 56 - access("T23"."ROW_ID"="T15"."ASSET_ID"(+) AND "T23"."BU_ID"="T15"."BU_ID"(+)) 57 - access("T15"."BU_ID"="T13"."ROW_ID"(+)) 59 - access("T23"."ROOT_ASSET_ID"="T19"."ROW_ID"(+)) 61 - access("T19"."PROD_ID"="T2"."ROW_ID"(+)) 63 - access("T15"."BU_ID"="T5"."PAR_ROW_ID"(+)) 65 - access("T23"."ROW_ID"="T22"."PAR_ROW_ID"(+)) Note ----- - dynamic sampling used for this statement 105 rows selected.Hello
It is not necessary to display the trace file - everything is clear from the plans that you have posted. The optimizer is the selectivity calculation assuming the absence of correlation between the columns. You can do these calculations that yourself and you see that if the entries are correct and if the hypothesis of lack of correlation is also correct, then the results should be correct, too. Since they are not, it's one of two things: optimizer stats are wrong, or the columns are in fact related.
First of all check the optimizer statistics: i.e. take NUM_ROWS and NUM_NULLS of DBA_TAB_COL_STATISTICS and compare them with the actual rowcounts. If they are correct (in a reasonable error margin), then it means that the columns are correlated, and the optimizer will need additional assistance to obtain right of cardinalities.
Best regards
Nikolai -
Hi team,
For example if I have a demo table with 4 columns (A, B, C, D) DEMO.
I want a report on this table, such that the report contains the headers and the Details section.
For each unique combination of (A, B) I must first of all show header based on the header information I want to display the detailed section.
In my header section I want to display 2 columns (A, B) that are common to the detailed section. Remaining 2 columns in the detailed section.
Here is an example: -.
A B C D
1 5 9 3
1 5P8
1 5 P O
1-5-9
1 8 9
1 D * /
2 8 33 P
2 P O O
2 P L L
YOU WILL SEE
A AND B
1 5
C D
9 3
P 8
P O
A AND B
1 D
C D
5 9
8 9
* /
A AND B
2 P
C D
8 33
O O
L L
Please suggest the solution (sql query) for above the problem and how to nest gernerated headers dynamically in the report area.
I use APEX 4.0
Any position in this regard is very significant.
Thanks and greetings
RajendraTry this:
SQL> select * from tab; 1 5 9 3 1 5 P 8 1 5 P O 1 D 5 9 1 D 8 9 1 P 8 3 1 P O O 7 rows selected. SQL> select a,b from (select r,a,b from ( select to_char(rownum)||'a' r, 'A' a,'B' b from (select distinct a, b from tab order by a,b)) union ( select to_char(rownum)||'c' r, 'C' c,'D' d from (select distinct a, b from tab order by a,b)) union ( select to_char(rownum)||'b' r, a,b from (select distinct a, b from tab order by a,b)) union select parent.r, tab.c, tab.d from ( select to_char(rownum)||'d' r, a,b from (select distinct a, b from tab order by a,b)) parent , tab where parent.a=tab.a and parent.b=tab.b ) order by r ; A B 1 5 C D 9 3 P 8 P O A B 1 D C D 5 9 8 9 A B 1 P C D 8 3 O O -
Analyze: Body of PL/SQL function returning a SQL query
I need to get the final SQL returned by the PL/SQL function.
I'll use this final SQL in a procedure.
Please provide only a few tips on how to get the SQL code. I already looked in the DBMS_SQL package, but I don't know if this is the right place to look.
Kind regards
Sumitdeclare l2 varchar2(2000); begin l2:= 'Select NAME,ORIGINATED,OWNER,ORIGINATOR,'; l2:= l2 || 'DESIGNATED_UNIT,SOURCE,'; l2:= l2 || 'REFERENCE'; l2:= l2 || ' from MV_DETAILED_DATA'; /* Copy dynamic query SQL to application item for later use. */ :app_item := l2; wwv_flow.debug('l2: ' || l2); return l2; end;I always use a call of debugging in the region of body of the PL/SQL function returning a SQL query sources so the real generated SQL can be quickly entered via the debug mode.
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PL/SQL Query return function, adding the column links
Hi all
I'm working on a SQL report with the area type = function from PL/SQL Query to return
All columns are generated dynamically based on my mapping table and a column of ID.
So whenever the page is loaded, according to the ID mapping table returns a set of columns in a particular order.
So not only the columns are dynamic, but the order of the columns varies also.
But the first 1 column is standard (it doesn't come from the mapping table) and is coded in my pl/sql block hard.
I'm fighting with the addition of a link to this column. The link must be a Javascript function which takes the parameters in the form of 2 columns in the mapping table.
My pl/sql block is something like that...
Now, I'm not able to transmit the values of this #map_id # and #comments # correctly. I tried so many different combinations of channels, but could not make it work.v_select := 'SELECT <g href=javascript:f_report1(#map_id#,#comments#)><img src=""></a> as report1, '; // g=a v_cols := 'contains all columns from the mapping table based on a ID(hidden item)'; v_from := 'FROM table'; v_where := 'where condition is put in here'; v_query := v_select||v_from||v_where; return v_query;
I'm not sure that the order of this map_id and commentscolumn and therefore cannot connect through the report attributes.
How can I go to a column value to the function?
Thank you
DippyThis should work if all goes well:
v_select := q'[ SELECT '
' as chart, ]';Published by: Dimitri Gielis on May 20, 2010 20:10
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Failed to parse the SQL query: ORA-00918: column ambiguously defined
I have an application that generates a report that says what indicator is connected to what size. For this, a package is created called and under this function is there that generates and returns a dynamic SQL strings that indicates which indicators depends on what size. In my report under the defination of region identification section, the type is mentioned the SQL (sql query return function body) and in the section source it returning
Thanks in advance. Any suggestions on this will be useful for me to traceout the issue.
Concerning
ADI
Published by: Adi on January 4, 2010 01:04
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fix column names in a sql Query
Hi people,
I am upgrading an application and there are database columns that have major changes that could affect the production of reports. I want to the investigation from v$ SQL for a few days to see if these columns are affected. That is the problem.
Watching a SQL query to determine which columns are used is not nearly as easy as it sounds. Are there functions oracle or 3rd party tools that allows to display the columns used by a sql query? (this becomes extremely difficult when subqueries are involved)
For example.
Select
name, b.dep_id, employe_id
EMP a
Inner join v_department b on a.dep_id = b.dep_id
Used columns:+.
EMP. Name+.
Departments.dep_id (under the view).
EMP.employee_id+.
EMP.dep_id (from the join)+.If you are on > 10g, you can use dbms_xplan with option 'all '.
She has "projection column information" which is exactly what you want.UKJA@ukja102> set serveroutput on UKJA@ukja102> UKJA@ukja102> drop table t1 purge; Table dropped. Elapsed: 00:00:00.03 UKJA@ukja102> create table t1(c1 int, c2 int); Table created. Elapsed: 00:00:00.03 UKJA@ukja102> UKJA@ukja102> explain plan for 2 select 3 t1.c1, t1.c2, v.cnt 4 from t1, 5 (select /*+ no_merge */ c1, count(*) as cnt 6 from t1 7 group by c1) v 8 where 9 t1.c1 = v.c1 10 ; Explained. Elapsed: 00:00:00.01 UKJA@ukja102> UKJA@ukja102> @plan_all UKJA@ukja102> select * from table(dbms_xplan.display(null,null,'all')) 2 / PLAN_TABLE_OUTPUT -------------------------------------------------------------------------------- Plan hash value: 536125944 ----------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | ----------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 1 | 52 | 6 (34)| 00:00:01 | |* 1 | HASH JOIN | | 1 | 52 | 6 (34)| 00:00:01 | | 2 | TABLE ACCESS FULL | T1 | 1 | 26 | 2 (0)| 00:00:01 | | 3 | VIEW | | 1 | 26 | 3 (34)| 00:00:01 | | 4 | HASH GROUP BY | | 1 | 13 | 3 (34)| 00:00:01 | | 5 | TABLE ACCESS FULL| T1 | 1 | 13 | 2 (0)| 00:00:01 | ----------------------------------------------------------------------------- Query Block Name / Object Alias (identified by operation id): ------------------------------------------------------------- 1 - SEL$1 2 - SEL$1 / T1@SEL$1 3 - SEL$2 / V@SEL$1 4 - SEL$2 5 - SEL$2 / T1@SEL$2 Predicate Information (identified by operation id): --------------------------------------------------- 1 - access("T1"."C1"="V"."C1") Column Projection Information (identified by operation id): ----------------------------------------------------------- 1 - (#keys=1) "T1"."C1"[NUMBER,22], "T1"."C2"[NUMBER,22], "V"."CNT"[NUMBER,22] 2 - "T1"."C1"[NUMBER,22], "T1"."C2"[NUMBER,22] 3 - "V"."C1"[NUMBER,22], "V"."CNT"[NUMBER,22] 4 - (#keys=1) "C1"[NUMBER,22], COUNT(*)[22] 5 - "C1"[NUMBER,22] Note ----- - dynamic sampling used for this statement 40 rows selected. Elapsed: 00:00:00.01 UKJA@ukja102> UKJA@ukja102> UKJA@ukja102> @end UKJA@ukja102> set echo offDion Cho
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Œuvres SQL query to MS SQL Server 2008, but not when you use the database kit
I have this SQL query:
DECLARE TABLE (@DataTypeTable)
Name varchar (128).
TypeID INT)-Add comma delimeted type data in the temporary table names
INSERT INTO @DataTypeTable (name)
SELECT * from WhatWeShouldDoRead.func_Split (@DataTypeTrimmed, ',')SELECT the name OF @DataTypeTable
That takes a comma delimited by the string and returns the string as a table. It works correctly in Microsoft SQL Server Management Studio. When I run this as a stored procedure I return nothing. There are no errors, SQL or otherwise. I checked that I am connected to the correct database and the stored procedure is responsible without changing any error chain which is reported of this stored procedure (that code is not shown in the example above). Has anyone seen this problem before, or have experience with SQL/Labview interfaces to tell me what I am doing wrong?
Thanks in advance.
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HI HI... I'm a student doing a project related to labview. My task is to create a vi, type a user name and password to continue the whole VI.
As I am a newbie to SQL query language, can anyone help me this?... This isn't like the VI with password lock
There is a connection of the user called button in my main façade... u by clicking on it, a pop-up window will come out asking you a user name and a password. If the user name and the password is correct, then you can proceed. The problem is that I'm stuck with database...
Help me pls!with respect,
Ray
Hello
You have two cases:
(1) connect to the database with string (link a string of connection information), and then type something like this:
Driver is SQL Native Client;. Server = IP. Add.re.SS; UID = username; PW = *** ; Database = MyDatabase (depends on your database)(2) use a UDL file (you can configure it to connect to your database, with specific format). Remember that the connection is successful with test button.
There is a UDL file that you can edit here: C:\Program NIUninstaller Instruments\LabVIEW 2010\examples\database\Labview.udl
Edit: The connection dropped, you can set the path to an mdb file, and I think you can give the path of your accdb file.
Kind regards
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I am trying to execute the following SQl query, SELECT * failure WHERE ID = '123 ' AND RepairAction =' '; using the DB tools run Query.vi. This query never find record in my database. My database contains a record where the registered ID contains the value '123' and the RepairAction field is an empty string. If I remove the declaration 'AND RepairAction' ';' my query text, the record is found. I think my problem is that I do not use the correct syntax to describe and an empty string. I tried the following: "," ",""," "and NULL as empty and none of these work string arguments.
I was hoping someone might be able to tell me what the correct syntax is an empty string or if there is another approach that I take.
Thanks in advance for your help,
Jim
Jim,
Just to be sure, have you used 'is' instead of '=' in this command?
This makes all the difference in this command.
Cerati
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