oracle sql connect by level example

SQL turning is a tool in the Quest Central software produced by Quest Corporation. Quest is an integrated, graphical, Cross-platform database management solution that can manage Oracle, DB2, and SQL Server databases simultaneously. Introduction to

Connect by prior recursive algorithm for tree data (parent/child data) retrieval in Oracle 1. Complete example: Select PID, ID, name, deptid, level, sys_connect_by_path (name ,'/'), connect_by_root PID as rootid from t_wf_eng_wfkind where deptid

ORA-00604 error occurred at recursive SQL level string Cause: An error occurred while processing a recursive SQL statement (a statement applying to internal dictionary tables ). Action: If the situation described in the next error on the stack can

Oracle SQL Performance 1. ORACLE optimizer:. RULE (based on Rules) B. COST (COST-based) c. CHOOSE (optional) sets the default optimizer. various declarations of the OPTIMIZER_MODE parameter in the ora file, such as RULE, COST, CHOOSE, ALL_ROWS,

Detailed description of start with... connect by statement   Simple tree query for Oracle (recursive query) Deptid Paredeptid Name Number Number Char (40 bytes) Department ID Parent department ID

1. Oracle startup and Shutdown 1. In a single-host environment To start or shut down the Oracle system, you must first switch to the Oracle user, as shown below: Su-Oracle A. Start the Oracle SystemOracle> svrmgrlSvrmgr> connect internalSvrmgr>

Oracle remote connection (PLSQL, SQL developement + Oracle database + client + remote connection settings, plsqldevelopement Server Configuration: oracle11g R2 x64 1. Set the listener A. Launch bar-> Start-> Program-> Oracle-OraDb11g_home1->

 I. Description Oracle provides a profiler toolkit that allows you to view the performance of each module during PL/SQL Execution. You can download this script from MOS: Implementing andusing the PL/SQL profiler [ID 243755.1]   You can also download

Reprinted from: http://blog.csdn.net/leshami/article/details/5917103The Oracle client connection to the Oracle database server looks different from the network configuration in SQL serve, except that all SQL Server runs on the Windows platform, so

recursive queries in Oracle can be used by: Select, start with, connect by.. Prior The following describes the common ways in which tree queries are used in Oracle, with only one table involved. I. Build a TABLE statement:--Menu directory Structure