rollback

Use examples: save (' table_1 ', $row); Update $db->update (' table_1 ', $row); Delete $db->remove (' Table_1 ', 1); Query $rows = $db->find ($sql, ' id ') ?>

1. Pattern objects A pattern is a collection of data logical structures or schema objects (schema object) that is owned by a database user with the same name as the user name. The pattern object is created and manipulated by SQL and contains the

Data | database | performance Storage performance Assessment When storing performance evaluations, we use the Disk Performance index (DPI, disk Performance Index), and the following table lists the indices in the DPI, which do not imply a full

Oracle Week 2nd: Rolling back monitoring How much longer will it take? : Rolling back monitoring Provide users with an accurate assessment of rollback operation time Are we still in this place? How much longer will it take? Does it sound

Computer hardware needs to be related to the driver to connect to work normally, these drivers are usually updated to improve the compatibility and stability of the hardware, but in the update hardware drivers will inevitably encounter abnormal or

Start from a problem Recently, the bank of this matter more serious ah, many depositors of the money in the bank, it disappeared, and the bank does not ask, said the user's responsibility, litigation, users can also lose, this is "socialism." Let's

oracle| Concept | planning | solving | Problem ROLLBACK segment Management has been a problem in Oracle database management, this paper introduces the concept, usage and planning of Oracle rollback segment and solution of problems through examples.

c++|object| objects C + + Persistent object Storage (persistent object Storage for C + +) Profile Description Object types allocate and release objects from memory the permanent object Protocol memory constructor open memory post++ installation

Starting with SQL2005, checksum checksum is added as an option for page checksums, the most widely known two checksum options are the checksum options and page validation checksum options at backup time Another option that less people know

A user session is just a user's connection to the database, and the user's operations on the database are done through a single transaction in the session. Managing a transaction is not just a DBA's task, and each user who publishes a transaction

13.5.1 Close Cursor 1. Close the cursor with the closing command After processing the data in the cursor, the cursor must be closed to release the data result set and the lock positioned on the data record. The close statement closes the cursor,

Oracle Author: Anonymous Source: InterNet Add Time: 2003-7-20 a tablespace can only belong to one database At least one control file per database (recommended 3, on separate disks) At least one table space per database (System tablespace) The

1. Set the SQL statement for the five rollback segments as follows: 　　 SELECT segment_name from Dba_rollback_segs WHERE initial_extent Uppper (OWNER) = ' public ';SELECT UPPER (STATUS) from Dba_rollback_segs WHERE UPPER (segment_name) = ' 　　 ALTER

Upgrade Environment: 1, 11.2.0.1 to RAC 11.2.0.2RAC 2, RAC 11.2.0.1 to RAC 11.2.0.3 3, RAC 11.2.0.2 to RAC 11.2.0.3 The above DB software is upgraded through the Out-of-place upgrade method. If you find a problem with the upgrade process and

Advanced | data | database One, Connection pool 1, Features: ①, Advantages: Performance ②, disadvantage: There may be many unused connections, resource waste 2, ADO. NET Connection Pool ① each. NET data provider that is contained in Ado.net can

oracle| Create Available for: Table spaces, rollback segments, tables, indexes, partitions, snapshots, snapshot logs Parameter name default value minimum Maximum description INITIAL5 (block) 2 (data block) operating system limits the size of the

Whether intentionally or unintentionally, if a transaction remains open in the database, it blocks other processes from manipulating the modified data. Similarly, backing up the transaction log only truncates the part of the transaction log for

Oracle's 11GR2 version does not make much of a change to the data pump, mainly by adding support for the original version parameters and removing some small restrictions. This article introduces the data pump to import the new data_options

oracle|unix| Data can unix Oracle 10g read file data with Utl_file packets? I am under Window Oracle 8i using Utl_file can read the data of text files, I test through, But not on Unix Oracle 10g! Error! Begin Loadfiledata (' D:\ora ', ' 1.txt ');

MySQL replication is asynchronous, that is, a unsynchronized process that does not validate the consistency of data in the database, as long as the SQL syntax is correct and there is no error to execute successfully Mastertest 12:20:40>create Table