Oracle

Create or replace procedure Proc_data_check is    -- Defining VariablesV_LOCK_ID INTEGER;V_lockhandle VARCHAR (128);V_RELEASE_ID INTEGER;    -- To define an error exception message encodingV_error_code VARCHAR2 (10): = ";    -- Defining Error

The Select primary key or the column that can represent the current row from (the select Primary KEY or the column that can represent the current row, repeating columns, row_number () over (PARTITION by repeating column ORDER by repeating

Oracle cannot import an empty table solutionC:\users\administrator>sqlplus/as SYSDBASql*plus:release 11.2.0.1.0 Production on Sunday August 17 19:24:29 2014Copyright (c) 1982, Oracle. All rights reserved.Connect to:Oracle Database 11g Enterprise

American_america. WE8ISO8859P1, this character encoding is a Western European character encoding, which corresponds to. NET is the iso-8859-1 character encoding, so only need to change to the system's default character encoding on the

Oracle Table ConnectionSql/oracle querying data from multiple tables using table joinsSyntax format:Select Field ListFrom Table1,table2where Table1.column1=table2.column2;DescriptionSpecifying join conditions in the WHERE clauseWhen the same name

With AS syntax– For an aliasWith TMP as (SELECT * from Tb_name)– For multiple aliasesWithTMP as (SELECT * from Tb_name),TMP2 as (SELECT * from Tb_name2),Tmp3 as (SELECT * from Tb_name3),... 123456789 --相当于建了个e临时表with e as (select *

1. According to rowID to divideSELECT * from T_xiaoxi where rowID in (the Select Rid from (select RowNum rn,rid from, select rowID rid,cid fromT_xiaoxi ORDER BY cid Desc) where rownum9980) the ORDER by CID Desc;Execution time 0.03 seconds2.

--undo Table Space Summary--View all table space namesSelect name from V$tablespace;--Create a new undo table space and set the auto-expand parameters;Create undo tablespace undotbs2 DataFile ' D:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\UNDOTBS02. DBF '

*********** Importing (exporting) data with toolsTool (T)-"Export Table" (X)Tool (T)-"Export Table" (X)Selected Execution File location:E:\oracle\product\10.2.0\db_1\bin\imp.exe (Exp.exe)********* command Import and ExportOracle Import DMP File

--Login:Sys/[email protected] as Sysdba1, establish table space, grant permissions/* divided into four steps *//* Step 1th: Create a temporary tablespace */Create temporary tablespace user_tempTempfile ' D:\oracle\oradata\Oracle9i\user_temp.dbf

Requirements: Build a table on the Vertica database, the table structure originates from the original Oracle database, so it needs to be converted into Vertica database table structure. The actual conversion operation needs to evaluate all the data

Use of rownum in Oracle for sorting in result sets Use of rownum in Oracle for sorting in result sets For the rownum problem in Oracle, many documents do not support>, >=, =, between... and. The preceding symbols can only be used (,> =, =, .. and

Oracle current row function date Date of use Oracle internal use of digital storage date: century, year, month, day, hour, minute, second. The default date display format is DD-MON-RR. -- Only the last two digits of a year can be specified,

Typical Oracle database queries This document collects common database queries and requires the database administrator privilege: 1. query temporary tablespace usage SELECT TABLESPACE_NAME, TABLESPACE_SIZE / 1024 / 1024 TABLESPACE_SIZE_MB,

Oracle tablespace query and maintenance command Daquan 3 (temporary tablespace) the most comprehensive history-- UNDO tablespace Summary-- View All tablespace namesSelect name from v $ TABLESPACE;-- Create a new UNDO tablespace and set automatic

EBS base-Table suffix and ebs base suffix 1. _ ALL or no Suffix: base table. ALL data operations are performed on the base table. The table contains information of ALL different business units and multi-organizational environments. 2. _ B/_ T: it

Oracle current row function date Date of use Oracle internal use of digital storage date: century, year, month, day, hour, minute, second. The default date display format is DD-MON-RR. -- Only the last two digits of a year can be specified, and

Win864-bit connection to oracle Database Using plsqldeveloper Problem: When plsql developer is used on a 64-bit win8 system to connect to a local oracle database, an inexplicable problem may occur. The error prompt box may even be blank. Reason:

Oracle full-text search-based word splitting mechanism for text information similarity search Application scenarios: Query information similar to this keyword Based on the keyword. Some keywords should be excluded, such as "limited company",

Oracle Automatic Memory parameter dependency The database will only automatically optimize the size of the child components of SGA. The Automatic Optimization of PGA is irrelevant to whether or not to explicitly set the PAG. However, the overall