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This approach is totally transactional—as opposed to EXP and IMP (any time you take the data out of the database, I get nervous, because you might lose that data).
The takes this responsibility from you—you can have the database do all of the bookkeeping, making sure the redefined table has all of the needed grants, indexes, constraints, triggers, and so on—to make it a perfect copy of the original. For 3.5GB, either approach is going to be pretty fast regardless; 3.5GB is not very large these days.
JSON_VALUE function provides an easy way to access a value for a given key, but is there a way to obtain all the key names? Hello Tom, Is there a way to identify SQL queries that are consuming the majority of the shared pool for e.g Session #1 is using 56 kbsession #2 is 10mb I would want to identify each query and the memory value it's consuming. Hello Tom & Team, Can you please provide to get the list of sql ids along with elasped times and other metrics for a given sql statment.
Once obtained, can i force oracle to use a particular sql id which was performing better ? Hi, I would like to fing whats the best way to allow user to truncate table that is own by some one else thru forms on-line basis.
i use oracle logminer to analysis oracle redo log,and my program relied heavily on scn increase strictly，but sometimes i found that scn from result of logminer is not increase。for example：2694206926942070269420712694205826942071269420712694207126942071As we al...
Hi Tom I'm trying to determine if its best to write this logic in SQL or should I write a PLSQL block.
Oracle Database will materialize the view and then apply the predicate.
This is an example of a view that cannot be merged and does not support predicate pushing.
In his spare time, he also wrote Expert Oracle Database Architecture (Apress, 2005, 2010, 2014) and Effective Oracle by Design (Oracle Press, 2003), among other books.i need to generate my output as Date----12/01/200312/02/200312/03/200...a sql code to remove all the special characters from a particular column of a table example :i NPUT-ABC -D. FOUTPUT ABC DEFAND IF THERE IS TWO NAMES LIKE ABC PRIVATE LTDONE SPACE SHOULD BE MAINTAINED BETWEEN 2 WORDS.... Hi Tom, I'm sorry, I am working on so much topics, that I don't have time to search.Another way would be to use the UPDATING function like this: create or replace trigger my_trigger before update on my_table for each row declare n_cols integer := 0; begin for r in (select column_name from all_tab_columns where table_name = 'MY_TABLE' and owner = 'MY_SCHEMA') loop if updating(r.column_name) then n_cols := n_cols 1; exit when n_cols It's probably not the answer you want to hear, but I think you are rather over-exaggerating the burden of maintenance.It is not normal for a table's structure to change very often after it goes into production.