Unfortunately it’s not very clear what you want to get in the end, but here is how you could correctly use conditional SET in your UPDATE UPDATE relation SET name1 = CASE WHEN userid1 = 3 THEN ‘jack’ ELSE name1 END, name2 = CASE WHEN userid2 = 3 THEN ‘jack’ ELSE name2 END WHERE (userid1 … Read more
For last 24 hours: Where publish_date >= sysdate -1 or anytime today (midnight forward) where publish_date >= trunc(sysdate) If this is a big table, I assume you have an index on publish_date. If you use trunc(publish_date), it may not be able to use the index (untested, but run an explain plan to be sure).
You can use: Integer grandChildCount = ((BigInteger) result[1]).intValue(); Or perhaps cast to Number to cover both Integer and BigInteger values.
Statement.executeUpdate() or execute() followed by getUpdateCount() will return the number of rows matched, not updated, according to the JDBC spec. If you want the updated count, you can specify useAffectedRows=true as a non-standard URL option. More information is available here.
In PostgreSQL 9.4 and greater there is actually a make_date(year int, month int, day int) function that will create a date. https://www.postgresql.org/docs/current/functions-datetime.html
Because this post is the top one found on stackoverflow when searching for “ORA-00942: table or view does not exist insert”, I want to mention another possible cause of this error (at least in Oracle 12c): a table uses a sequence to set a default value and the user executing the insert query does not … Read more
Yes, you can use RAISE NOTICE like below. It’s correct the way you are doing. RAISE NOTICE ‘i want to print % and %’, var1,var2; See here for more information https://www.postgresql.org/docs/current/static/plpgsql-errors-and-messages.html EDIT: begin INSERT INTO tbl1 (col1) values (val1); raise notice ‘insert tbl1 done!’; end;
Leaving database modeling issues aside. I think you can try SELECT * FROM STUDENTS WHERE ISNUMERIC(STUDENTID) = 0 But ISNUMERIC returns 1 for any value that seems numeric including things like -1.0e5 If you want to exclude digit-only studentids, try something like SELECT * FROM STUDENTS WHERE STUDENTID LIKE ‘%[^0-9]%’
select DATE(my_field) from my_table;
Please try below code to insert values in tables using for loop. do $$ begin for r in 1..1000 loop insert into schema_name.table_name(id) values(r); end loop; end; $$;