oracle update

Label:Operation of the database, often error operation, yesterday after the update operation found that the update is wrong, only to find ways to recover data, now tidy up First step: Query the time to perform the update operation Select from V$sqlarea R ORDER by r.first_load_time Desc; Execute the above SQL statement in the Sql_text field to find the

Sql>select * from WWN2; TOWN ID------------------------------222 222 111 WW ' JJ llll 1111 dddd 2222 Lllldf Lllldf DSAFDF 3435 LJJJJJ 222 DSAFDF 3435 LJJJJJ 222 sql> SELECT * from WWM5; TOWN ID------------------------------lllldf test 9984 sql> Select wwm2.* from WWM2,WWM5 where wwm2.id=wwm5.id TOWN ID---------------------- --------ww ' JJ Lllldf lllldf DSAFDF 3435 DSAFDF

For simpler tables, the amount of data is not a very much table, you can use a simple SQL statement to back up CREATE TABLE t_fa_cat_20121207 as SELECT * from T_fa_cat Create a new table and save the data INSERT INTO T_fa_cat select * from t_fa_cat_20121207 To import the original backed-up data into a table to recover data How to update multiple fields in a table on Oracle to another tableUpdate a

// Dynamic link library path $ Oracle installation path $/bin/oracle. dataaccess. dll // Namespace reference Using Oracle. dataaccess. client; // Rough description of the Encoding Process Int rowscount = 10; // it is assumed that 10 records need to be deleted. Oracle. dataaccess. Client. oracleconnection connection = n

Starting January 18, 2005, Oracle plans to provide critical patch updates quarterly. These comprehensive patches, provided through Metalink, will address significant security vulnerabilities, and include fixes that customers may apply or prerequisite procedures for applying security fixes, or both. OTN: Why does Oracle have to start quarterly critical patch updates? Davidson: Customers tell us that they p

Oracle 11g update PSU detailed steps Oracle releases the latest patches every quarter. For production O M personnel, regular system upgrade and patching are indispensable in daily work. Compared with the previous versions, Oracle patching has become relatively simple, and the method for processing PSU has also changed

Reprinted from the Heaven of stealingMotivation:You want to do insert/update directly with an SQL statement in Oracle.DescriptionWhen writing SQL statements, we often encounter a large number of simultaneous insert/update statements, that is, when there is a record, it is updated (update), when no data exists, insert (insert).Actual combat:Next we have a task, th

---------------------------------------------------------------- Oracle Database 10g Enterprise EditionRelease 10.2.0.5.0-Prod Dave:/u01/app/oracle/product/10.2.0/db_1/OPatch>./opatch version Invoking OPatch 10.2.0.4.9 OPatch Version: 10.2.0.4.9 OPatch succeeded. Ii. Update OPatch tool Methods The method for updating the OPatch tool is simple. You only need to d

This two days to the new colleagues to arrange a job, that is, to do an update cascade update, in the actual operation found a problem. For Oracle's newer syntax, most people, especially those who have studied SQL Server, have a lot of questions about Oracle updates when they use Oracle. Write down for future reference

How to update a patch (Rolling Patch) in the Oracle RAC EnvironmentThe Oracle RAC database environment has many similarities and differences with the single-instance database environment. You can use opatch to update database patches. However, there are several different update