Number of rows in all tables

Hi,
I need to query in max db to find number of rows exist in each and every table. Is there any query we can use to find in a single shot?
Example:
S.NO Table Name      Number of rows
1          A                    3000
2          B                     5000

Hi,
it depends on the database version you are using. In the newer database versions 7.8 and 7.9 you can use the system table files to get the total number of records.
SELECT sum (entrycount) from files where type = 'TABLE'
This includes the MaxDb systemtables as well.
If you want to count the number of rows of one schema only use the following join command between tables and files:
SELECT sum(entrycount) from files f, tables t where f.type = 'TABLE'
AND tableid = fileid and SCHEMANAME = '<schema>'
e.g.
SELECT sum(entrycount) from files f, tables t where f.type = 'TABLE'
AND tableid = fileid and SCHEMANAME = 'SUPERU'
The system table files contains for each table the entrycount, which is exaclty the number of records.
Precondition: All file directory counters for all tables have been created sucessfully. This is the case if table Sysupdatecounterwanted is empty. The creation is implictely executed.
Regards, Christiane

Similar Messages

Number of rows in all of your tables.

Hello,
If I want to discover the number of rows in all of my tables (e.g. I own 20 tables and each table has 50 rows), why is the following code not providing the answer:
SELECT count(*)
FROM (SELECT table_name
FROM all_tables
WHERE owner = 'SHIRISH');
Thanks in advance,
Shirish

Yes, EXTEND, FIRST and LAST are related to using collections. Actually, I think you're wrong about using 0 to indx. Looking at his code, I believe that would need to be 1 to indx. Which of course, demonstrates the reason to use FIRST and LAST. That way you don't have to make assumptions about the index range. I wouldn't have kept the index separately. I would have use the COUNT attribute when adding elements to the collection. Actually, I probably wouldn't have used the extra collection at all given what that code does ...
declare
    type ttab_table_name is table of user_tables.table_name%type;
    tab_table_name ttab_table_name;
    vint_cnt integer;
begin
    select table_name
    bulk collect into tab_table_name
    from user_tables;
    for i in tab_table_name.first .. tab_table_name.last loop
        execute immediate 'SELECT COUNT (*) FROM '
            || tab_table_name(i) into vint_cnt;
        dbms_output.put_line(rpad(tab_table_name(i), 35, ' ')
            || '- ' || to_char(vint_cnt, '999,999,999'));
    end loop;
end;
/

Displayin message and fixing the number of rows in a table

Hi Experts,
I have a requirement like this
there is a table, where i need to diplay a message when there are no records and no rows should be visible on that table.
Also, when the records are populated from the context, i need to fix the number of rows in that table and display the records.
Please let me know hw this can be achieved.
Also in the table I have Link to URL, please let me know how to handle this reference, when i set the reference Property, its giving me an error stating that the file doesn't exist when the table gets loaded.
Thanks in Advance
Regards,
Palani

Hi
Oh!! You should to explain it at first thread itself that you want to display a JPG imange or other WDWebResourceTypetaken form the backend.
1. So this is not at all a URL
2. You have to convert binary data to WDWebResource then display it in either Image UI element or other (like PDF , txt etc)
3
try
               //        Read the datasource of the FileUpload
               IWDResource res = wdContext.currentContextElement().getResource();
               InputStream in = res.read(false);
               ByteArrayOutputStream bOut = new ByteArrayOutputStream();
               int length;
               byte[] part = new byte[10 * 1024];
               while ((length = in.read(part)) != -1)
                    bOut.write(part, 0, length);
               in.close();
               bOut.close();
               IPrivateUploadCompView.IImageTableElement ele = wdContext.nodeImageTable().createImageTableElement();
               ele.setImage(wdContext.currentContextElement().getResource().getUrl(0));
               ele.setText(res.getResourceName());
               wdContext.nodeImageTable().addElement(ele);
          catch (Exception e)
               wdComponentAPI.getMessageManager().reportWarning(e.toString());
Here I assume that you convert that data to IWDResource type or
4.
WDWebResource.getWebResource(wdContext.currentContextElement().getresource(), type);
// getResource of type binary which u read from BAPI and set it in local context , type is MIMETYPE or hardcode it as "JPG"
5. Further help
   [Help1|To Displayan Image in Webdynpro Java from Standard Function Module;
[Help2|http://wiki.sdn.sap.com/wiki/display/KMC/GettinganimagefromKMDocumentstobeusedinWeb+Dynpro]
[Help3|http://wiki.sdn.sap.com/wiki/display/KMC/GettinganimagefromKMDocumenttobeusedinWeb+DynPro]
It might code look strange at first , please do some reserch in SDN ,I did my best at this level.
Best Regards
Satish Kumar

Rows in all tables in one query

Hi All,
How can i find the numbers of rows (records) in all the tables except system tables with single query.
In one tran table i have around 10,00,000 (TEN LACS) rows. while processing it take time. Plz suggest some solution for this.
Regards,
Mummy

Hi,
You could use the NUM_ROWS column in the ALL_TABLES table. This column only gets populated if you collect statistics on the relevant tables though.
See: http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14237/statviews_2105.htm#REFRN20286
You can analyze the relevant tables first and then use a SUM. For instance this query gets the total number of rows in the tables in the schema MAST:
select sum(num_rows) from all_tables where owner = 'MAST';
Regards,
Marco
=
www.marcostuijvenberg.nl

What is the maximum number of row for a table control in LabWindows/CVI ?

I use LabWindows CVI 8.5.1 (MMI first developped in version 6.0).
In one of our many MMI, a table control contains a list of aircraft parameters.
We can add as many parameters (row) as we want but over 40 000 we observe a crash of the LabWindows CVI runtime.
Our client want to inscrease the number of parameters (row) up to 200 000 !!!
So my questions are:
What is the real maximum number of row for the table control ?
Is this maximum number of row different on LabWindows 2010 version ?
Or is there an other solution ?
Thanks

Greetings,
Can you clarify what you mean by "crash"? Is there an error message thrown? Is it possible that you've consumed all of the available memory?
Please let me know.
Thanks, James Duvall
Product Support Engineer
National Instruments

What is the problem with native dynamic sql when counting rows in all table

what is the problem with native dynamic sql when counting rows in all table?Giving an error "table or view does not exist". Thanks.
DECLARE
v_sql_string varchar2(1000);
v_no_of_rows number;
BEGIN
for i in ( select table_name from all_tables )
loop
v_sql_string := ' select count(1) from ' || i.table_name;
dbms_output.put_line( v_sql_string );
--execute immediate v_sql_string into v_no_of_rows;
end loop;
END;

Usually your problem can be described with 'Who cares'. I mean, for what reason do you do this? I doubt that there's a business need to get 100 % accurate answers for this. Normally such things are used to get a picture about the growth of data.
Personally I would prefer to have up-to-date statistics for all tables and just query the number of rows from there. Sufficient for me in < 99 % of all cases.
Just my $ .02...

How to find number of rows in a table

i have one table ,it contains millions of record,how can i know number of rows in that table without using count(*),
i tried in user_table ,for the column NUM_ROWS,but it is not showing number of rows,pls send me a solution for this.
regards,
singh

Ok, that only was to show simply that max option
might not an option to reduce execution time.Yes, but I/O variances have a tendency to really skew the observed elapsed execution time - making execution time alone a poor choice to determine what SQL will perform better than another.
Both MAX(ROWNUM) and COUNT(*) results in the same amount of I/O - as both uses the exact same execution plan, I/O wise. In this example, a FTS.
SQL> create table testtab nologging as select * from all_objects where rownum < 10001;
Table created.
-- warmed up the buffer cache with a couple of SELECTs against TESTAB in order
-- to discard PIOs from the results
SQL> set autotrace on
SQL> select count(*) from testtab;
COUNT(*)
10000
Execution Plan
Plan hash value: 2656308840
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 35 (9)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | TABLE ACCESS FULL| TESTTAB | 9262 | 35 (9)| 00:00:01 |
Note
- dynamic sampling used for this statement
Statistics
0 recursive calls
0 db block gets
131 consistent gets
0 physical reads
0 redo size
223 bytes sent via SQL*Net to client
238 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
SQL> select max(rownum) from testtab;
MAX(ROWNUM)
10000
Execution Plan
Plan hash value: 2387991791
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 35 (9)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | COUNT | | | | |
| 3 | TABLE ACCESS FULL| TESTTAB | 9262 | 35 (9)| 00:00:01 |
Note
- dynamic sampling used for this statement
Statistics
0 recursive calls
0 db block gets
131 consistent gets
0 physical reads
0 redo size
225 bytes sent via SQL*Net to client
238 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
So seeing that we have the exact same baseline for both queries, and that PIO does not influence the results, we time a 1000 executions of both.
SQL> declare
2 cnt number;
3 begin
4 for i in 1..1000
5 loop
6 select count(*) into cnt from testtab;
7 end loop;
8 end;
9 /
PL/SQL procedure successfully completed.
Elapsed: 00:00:03.19
SQL>
SQL> declare
2 cnt number;
3 begin
4 for i in 1..1000
5 loop
6 select max(rownum) into cnt from testtab;
7 end loop;
8 end;
9 /
PL/SQL procedure successfully completed.
Elapsed: 00:00:15.87
SQL>
This shows that what makes the MAX() more expensive is just that - determining the MAX(). For each row, Oracle has to call its internal MAX() function with two values - the current max result and the new value. This function then returns the new max value. This overhead per row adds up to a significant overhead in execution time - making the MAX() approach 5x slower than the COUNT() approach.

Number of rows in each table

Hi
How to find the number of rows in each table of a database by just using a SQL query,
and should not use the data dictionary tables also... is there any way...??
Thanks
MJ

It can be done in a single SQL like ->
satyaki>
satyaki>select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
Elapsed: 00:00:00.00
satyaki>
satyaki>
satyaki>SELECT table_name,
2         DBMS_XMLGEN.getxmltype ('SELECT Count(*) c FROM ' || table_name).EXTRACT ('//text()').ge
tnumberval() tot_rows
3 FROM user_tables;
TABLE_NAME                       TOT_ROWS
QUESTIONTYPE                            0
SRGROUPTABLE                            1
ST_TEST                                 4
REGISTER                                0
DEB_1                                   2
EMP1                                    0
6 rows selected.
Elapsed: 00:00:12.04Credit goes to Michael. ;)
Regards.
Satyaki De.

Fixed number of rows in ADF table

Can we specify fixed number of rows for ADF table so even no rows displayed it will still show 10 empty rows.

the rangesize property determines how many rows will be displayed and controls paging. If there are no rows to begin with (if I understand the question correctly) rangesize won't have any effect.

Determine Number of rows in Internal Table

Hi,
I have defined my internal table as follows:
     TYPES : BEGIN OF ABC_KEY,
              FIELD1(2)   TYPE C,
              FIELD2(1)   TYPE C,
              FIELD3(8)   TYPE N,
              END OF ABC_KEY.
DATA: itab1 TYPE TABLE OF ABC_KEY
                  WITH KEY FIELD1,
       wa_lines_1 LIKE LINE OF itab1.
How can I retrieve the number of rows in Internal Table?
Thanks.
Regards,
bw_newbie

You can define the number of rows of the internal table using the DESCRIBE itab command .
As the rest have already stated a sample code snippet .
For more info type in DESCRIBE in your prgram and click on (F1) by placing the cursor on DESCRIBE .
You will find more options as to how you can use the DESCRIBE command according to your requirement .
Thanks ,
Hari

How to retrieve number of rows of a table by jdbc?

can anyone show me a simple snippet of a java code about how to retrieve the number of ROWS in a table?
or even only showing the jdbc command that does this job would be enough.
thanks in advance :)
cheers

1. query for the count, then execute the query
"select count(*) from test" then
"select * from test"
2. create a scrollable ResultSet then
rs.last();
int count = rs.getRow();
rs.beforeFirst();
Jamie
p.s. this topic has been discussed MANY times. Do a search on this forum and you will get lots of other discussions on this topic.

Prevent user from deleting rows from all tables in his own schema

Hi,
How can I prevent user from deleting rows in all tables in his own schema.
I want the user to not able to delete rows from any existing or new tables that might be added in the future.
The user does not have the "DELETE ANY TABLE" system privilege.
Please advise.
Thanks.

Nowadays, I'd also avoid triggers (if possible).
Sometimes, when I daydream, I'm rewriting a few applications that I've contributed to as a newbie, and I'm very ashamed of it nowadays.
From what I've experienced, in retrospective, the emphasis on teaching 'Oracle stuff' has been lying far too much on PL/SQL row-by-row oriented processing instead of letting Oracle 'crunch' sets at once.
Most of my debugging hours ended up in discovering one or more database triggers 'doing stuff automagically'.
Another nice blogpost: http://rwijk.blogspot.com/2007/09/database-triggers-are-evil.html
Regarding OP's question:
I would just rethink/reconsider this requirement completely.
Correctly implementing privileges and roles seems the best way to go, yes.
Triggers? Nah...
pre-post-edit, noticed thread got updated just before posting
Don't know what you mean with 'namedropping', but I think it's legitimate to point other readers to interesting Oracle related opinions/articles that do have a technical background and lots of interesting examples.
post dreaded OTN outage edit (from here)
Again: I would just rethink/reconsider this requirement completely.
Both trigger/vpd are being used to hide a design flaw here.

How to set max. number of rows in a table?

Hi,
I'm working on a SCADA interface. In this application there are different tables with vertical scroll bar.
I prefer to make visible only the initialized rows (I've initialized 40 blank rows of a table with a string array). Since the window not contain all 40 rows but only 20 rows, I set the rows number of "table properties window" to 20; so I added a vertical scroll bar.
Now, when a user scroll the scroll-bar, he can view not only the 40 rows initializated, but an undefined number of rows.
There's a way to visualize only a limited number of rows?
Thanks in advance!

duplicate
LabVIEW Champion . Do more with less code and in less time .

Count all rows in all tables

Is there any easy way to count all of the rows in all of the tables?
I am currently generating a list of tables by selecting from all_tables and then turning that into individual select count(*) statements using awk.
I'm guessing there is probably some other better method?

Jim,
I have a sql script which I call numrows that will dynamically create select count(*) statements from the dba_tables dictionary view... It does not display all of the tables in the entire database, but instead prompts you for a particular schema. Maybe you can adjust to do what you want it to..
Regards,
David
+++beginning of script
-- Script to count the number of rows in tables
set serveroutput on
declare
numrows integer;
cursor c1 is select table_name from user_tables order by table_name;
function rowcount(tablename in user_tables.table_name%type)
return integer is
cursornum integer;
numrows integer;
ignore integer;
begin
cursornum := dbms_sql.open_cursor;
dbms_sql.parse(cursornum,
'select count(*) from ' | | tablename,
dbms_sql.v7);
dbms_sql.define_column(cursornum, 1, numrows);
ignore := dbms_sql.execute(cursornum);
ignore := dbms_sql.fetch_rows(cursornum);
dbms_sql.column_value(cursornum, 1, numrows);
dbms_sql.close_cursor(cursornum);
return numrows;
end;
begin
dbms_output.enable(10000);
dbms_output.put_line('Table Rows ');
dbms_output.put_line('------------------------------ ----------');
for c1rec in c1 loop
numrows := rowcount(c1rec.table_name);
dbms_output.put_line(rpad(c1rec.table_name, 32) | | numrows);
end loop;
end;
null

Count number of rows in a table

Hi,
I have a requirement. I want to frame a SQL, which takes schema name as input and returns tables owned by that schema and number of rows inside a particular table.
A Sample output:
===========
Table            No. of Rows
~~~~          ~~~~~~~~
A                    123
B                    126
C                    234
.Can somebody help me in framing a query for the same.
Regards,

hoek wrote:
But you could use this script:
http://laurentschneider.com/wordpress/2007/04/how-do-i-store-the-counts-of-all-tables.html
Laurent's solution most likely was published before IOT. Anyway, IOT ovwerflow tables must be excluded. Otherwise:
SQL> select table_name,
2          to_number(
3                    extractvalue(
4                                 xmltype(
5                                         dbms_xmlgen.getxml('select count(*) c from '||owner || '.' || table_name)),'/ROWSET/ROW/C')) cou
6    from dba_tables
7    where owner = 'OE'
8 /
ERROR:
ORA-19202: Error occurred in XML processing
ORA-25191: cannot reference overflow table of an index-organized table
ORA-06512: at "SYS.DBMS_XMLGEN", line 176
ORA-06512: at line 1
no rows selected
SQL> select table_name,
2          to_number(
3                    extractvalue(
4                                 xmltype(
5                                         dbms_xmlgen.getxml('select count(*) c from '||owner || '.' || table_name)),'/ROWSET/ROW/C')) count
6    from dba_tables
7    where owner = 'OE'
8      and nvl(iot_type,'X') != 'IOT_OVERFLOW'
9 /
TABLE_NAME                          COUNT
CUSTOMERS                             319
WAREHOUSES                              9
ORDER_ITEMS                           665
ORDERS                                105
INVENTORIES                          1112
PRODUCT_INFORMATION                   288
PRODUCT_DESCRIPTIONS                 8640
PROMOTIONS                              2
PRODUCT_REF_LIST_NESTEDTAB            288
SUBCATEGORY_REF_LIST_NESTEDTAB         21
10 rows selected.
SQL> SY.

Number of rows in all tables

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