The Training Academy: Ultimate Warrior Guide (Major Update In Progress)
The Vampire's Bite skill can Paralyze your opponent for 1 turn (a very nice ability considering the level of the class armour), and finally, the Ninja Death Strike ability is an interesting one indeed. For this reason, you can mess about with class armours for a while, although you may want to pick up some MC's, yet at the same time you could just wait a while
Because associative arrays are intended for temporary data rather than storing persistent data, you cannot use them with SQL statements such as INSERT and SELECT INTO. At your option, you can disable much of the flexibility (and complexity) of Oracle and create an easy to maintain system that requires little experienced human intervention
Oracle Database Administration
http://rkdba.blogspot.com/Posted by rkhanna at 1:36 PM No comments: Thursday, May 2, 2013 SQL Scripts to find TEMP tablespace usage Here are various scripts which helps in determining who's using the TEMP tablespace. 3)Instance-1 had the requested blocks but before it ships the blocks to Instance-2, it need to flush the changes from current block to redo logs on disks
MySQL :: MySQL 5.1 Reference Manual :: 13.2.8 SELECT Syntax
If you use FOR UPDATE with a storage engine that uses page or row locks, rows examined by the query are write-locked until the end of the current transaction. For example, in the following statement, columnb is treated as an alias name: SELECT columna columnb FROM mytable; For this reason, it is good practice to be in the habit of using AS explicitly when specifying column aliases
PostgreSQL: Documentation: 9.1: SELECT
(Applications written for Oracle frequently use a workaround involving the automatically generated rownum column, which is not available in PostgreSQL, to implement the effects of these clauses.) FOR UPDATE and FOR SHARE Although FOR UPDATE appears in the SQL standard, the standard allows it only as an option of DECLARE CURSOR. If the column's expression is a simple column reference then the chosen name is the same as that column's name; in more complex cases a generated name looking like ?columnN? is usually chosen
In order to make sure that only the one row is locked, you will need the proper index on the row, and if the table is not large, you can alter it to VOLATILE to force index usage
How to Unlock the Locked Table in ORACLE
http://dwhlaureate.blogspot.com/2014/07/how-to-unlock-locked-table-in-oracle.htmlPages HOME OBIEE INFORMATICA SQL INFORMATICA SCENARIOS HADOOP CLOUD COMPUTING UNIX DATASTAGE ORACLE TERADATA COGNOS SAS BO BIG DATA Tuesday, 15 July 2014 How to Unlock the Locked Table in ORACLE Oracle puts locks while performing any DDL or DML operation on oracle tables.When table locks is present on any tables in Oracle we cannot run DDL on those tables. Furthermore, I am not sure whether rollback operations for the updating DMLs in the killed sessions will not introduce new locks of their own on same objects
sql - Oracle locking with SELECT...FOR UPDATE OF - Stack Overflow
I seem to recall having read somewhere long ago that the requirement to specify columns is so that in some future version perhaps Oracle might only lock particular columns in the row
The FIRST function returns the value of expression expr when evaluated in the first row of the group of rows mapped to the pattern variable that is specified in expr. Row pattern quantifiers are referred to as greedy; they will attempt to match as many instances of the regular expression on which they are applied as possible
* (all-column wildcard) Specify the all-column wildcard (asterisk) to select all columns, excluding pseudocolumns, from all tables, views, or materialized views listed in the FROM clause. Oracle processes hierarchical queries as follows: A join, if present, is evaluated first, whether the join is specified in the FROM clause or with WHERE clause predicates
No comments:
Post a Comment