Help to create Materialized View that has timestamp conversion

Question

I need help creating materialized view with timestamp conversion between GMT to LocalTime.
Feel free to make any comments.
Thanks in advance.
jon joaquino;)

Answer 1

Here is one way.
1. Alter the table hist_table and add a new column pdt_timestamp.
2. Update the new column using the function 'new_time'
For example,
Update hist_table
set pdt_timestamp = new_time(gmt_timestamp,'GMT','PDT');
3. create a materialized view log on the table 'hist_table' using the syntax
create materialized view log on hist_table
with primary key, rowid, sequence;
4. create a materialized view now using the syntax:
(You have to specify your own storage numbers and tablespace name)
create materialized view mview_hist_table
pctfree 0 tablespace mymview
storage (initial 16k next 16k pctincrease 0)
build immediate
refresh fast on commit
as select uid,gmt_timestamp,pdt_timestamp
from hist_table;
Please test on your test instance before doing it on production. I have tested this on Oracle 10g for Windows 2000. I assumed that column 'uid' is the primary key on the table. I hope this helps.
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