Your goal is to loop through all tables in schema HR, count the records and display the results? The reason your procedure shows the error is because tab_var and not the content of the variable with that name is treated as the tablename for the SELECT statement.
You'll have to use dynamic SQL for your task:
Code:
CREATE OR REPLACE PROCEDURE tab_row_count
AS
v_row_count NUMBER;
BEGIN
FOR c_tables IN (SELECT table_name
FROM user_tables)
LOOP
EXECUTE IMMEDIATE 'SELECT COUNT(*) FROM ' || c_tables.table_name INTO v_row_count;
dbms_output.put_line('There are ' || v_row_count || ' rows in table ' || c_tables.table_name);
END LOOP;
END;
/
EDIT: seems like Gandof989 was a few minutes faster but came to the same conclusion
dear friends,
I have a large size file containg two fields data
like this
*** ****
122 222
***** *****
***** *****
232 233
i have file like this.
i want to remove blank lines from file .
i think awk is servive this problem
i wrote a awk command but the error is... (3 Replies)
Dear friends,
I am writing shell script in csh .
i want to make arthimatic operation in csh.
i wrote sysntax like this.
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--------------------------------------------------
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Hello,
I have perl script,which take some part of data in the file.
the below command works fine in normal cmd prompt.
`awk '/CDI/ && // && !/Result for/ {print $3 $5 > "final.txt"}' datalist.txt`;
`nawk -F"" '{print $2}' finalcdi.txt`;
But not working.
Please use code tags, thanks. (5 Replies)
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Any ideas ?
Thanks,
wbrunc
BEGIN { FS = "," ; OFS = "," }
{ if ( $8 ~ /A/ && $9 == B )
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$2="J.Doe"... (2 Replies)
awk -v sw="lemons|dogs" 'NR>100 && NR<200 BEGIN { c=split(sw,a,""); } { for (w in a) { if ($0 ~ a) d]++; } }
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sub(",*$","",o); print o;
}' /home/jahitt/data.txt
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Discussion started by: SkySmart
6 Replies
LEARN ABOUT PHP
db2_num_rows
DB2_NUM_ROWS(3) 1 DB2_NUM_ROWS(3)db2_num_rows - Returns the number of rows affected by an SQL statementSYNOPSIS
int db2_num_rows (resource $stmt)
DESCRIPTION
Returns the number of rows deleted, inserted, or updated by an SQL statement.
To determine the number of rows that will be returned by a SELECT statement, issue SELECT COUNT(*) with the same predicates as your
intended SELECT statement and retrieve the value.
If your application logic checks the number of rows returned by a SELECT statement and branches if the number of rows is 0, consider modi-
fying your application to attempt to return the first row with one of db2_fetch_assoc(3), db2_fetch_both(3), db2_fetch_array(3), or
db2_fetch_row(3), and branch if the fetch function returns FALSE.
Note
If you issue a SELECT statement using a scrollable cursor, db2_num_rows(3) returns the number of rows returned by the SELECT state-
ment. However, the overhead associated with scrollable cursors significantly degrades the performance of your application, so if
this is the only reason you are considering using scrollable cursors, you should use a forward-only cursor and either call SELECT
COUNT(*) or rely on the boolean return value of the fetch functions to achieve the equivalent functionality with much better perfor-
mance.
PARAMETERS
o $stmt
- A valid stmt resource containing a result set.
RETURN VALUES
Returns the number of rows affected by the last SQL statement issued by the specified statement handle.
PHP Documentation Group DB2_NUM_ROWS(3)
07-20-2017
