Oracle 10g SQL*PlusÃüÁîʵ¼ù
1¡¢Á¬½ÓOracleÊý¾Ý¿â
Æô¶¯SQL*Plus£¬ÒªÇóÊäÈëUser Name¡¢Password¡¢Host StringÕâÈý¸ö²ÎÊý£¬ÀýÈçÎÒÔÚ°²×°µÄʱºòĬÈÏ´´½¨µÄÊý¾Ý¿âΪorcl£¬Ò²¾ÍÊÇSID£¬ÃÜÂëҲΪorcl£¬¶ÔÓ¦ÉÏÃæµÄÈý¸ö²ÎÊýÈçÏÂËùʾ£º
User Name£ºorcl
Password£ºorcl
Host String£ºorcl as sysdba
¾Í¿ÉÒԵǼ³É¹¦¡£
»òÕßÒ²¿ÉÒÔʹÓÃĬÈϵÄscottÀ´µÇ¼£º
User Name£ºscott
Password£ºtiger
Host String£ºorcl
µ±Á¬½ÓOracleÊý¾Ý¿â³É¹¦µÄʱºò£¬¿ÉÒÔͨ¹ýÔÚÌáʾ·û“sql>”ÏÂʹÓÃÈçÏÂÃüÁîÀ´Á¬½ÓÖ¸¶¨µÄÊý¾Ý¿â£¬±ÈÈçÎÒʹÓÃscottµÇ¼£¬ÏÖÔÚʹÓÃconnÃüÁîÁ¬½Ó£º
conn orcl/orcl as sysdba
Õâʱ£¬Çл»ÎªÓû§sysµ½Êý¾Ý¿âorclµÄÒ»¸öÁ¬½Ó¡£
2¡¢±£´æSQL½Å±¾
ʹÓÃsaveÃüÁ¿ÉÒÔ½«µ±Ç°Ö´ÐеÄÃüÁî±£´æµ½±¾µØ´ÅÅ̵Äij¸öÎļþÖУ¬ÀýÈç²éѯscott.emp±í£¬½«²éѯÃüÁî±£´æµ½scott.emp.sql½Å±¾ÎļþÖУº
SQL> select
2 *
3 from
4 scott.emp
5 ;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- -------------- ---------- ---------- ----------
7369 SMITH CLERK 7902 17-12ÔÂ-80 800 20
7499 ALLEN SALESMAN 7698 20-2ÔÂ -81 1600 300 30
7521 WARD SALESMAN 7698 22-2ÔÂ -81 &
Ïà¹ØÎĵµ£º
**************************************
**** sql ²éѯ±¸Íü &nb ......
CASE ¿ÉÄÜÊÇ SQL Öб»ÎóÓÃ×î¶àµÄ¹Ø¼ü×ÖÖ®Ò»¡£ËäÈ»Äã¿ÉÄÜÒÔÇ°ÓùýÕâ¸ö¹Ø¼ü×ÖÀ´´´½¨×ֶΣ¬µ«ÊÇËü»¹¾ßÓиü¶àÓ÷¨¡£ÀýÈ磬Äã¿ÉÒÔÔÚ WHERE
×Ó¾äÖÐʹÓà CASE¡£
Ê×ÏÈÈÃÎÒÃÇ¿´Ò»Ï CASE µÄÓï·¨¡£ÔÚÒ»°ãµÄ SELECT ÖУ¬ÆäÓï·¨ÈçÏ£º
SELECT =
CASE
WHEN THEN
WHEN THEN
ELSE
......
ÎÒ¾³£ÎʵÄÒ»¸öÎÊÌâÊÇ£ºÄãÊÇÈçºÎÀ´À©Õ¹SQL DatabaseµÄ£¿ÓкܶàµÄ·½·¨¿ÉÒÔ×öµ½£¬±ÈÈçʹÓûº´æ£¬¹²Ïí»òÕßÓÃÆäËûµÄ¼¼Êõ½«Ñ¹Á¦´ÓÊý¾Ý¿âÊÍ·Å£¬µ«Êµ¼ÊÉÏÎÒÃÇûÓС£SQL Database´Ó¸ù±¾ÉÏÀ´ËµÊDz»¾ßÓÐÀ©Õ¹ÐԵģ¬ÎÒÃÇҲûÓÐħ·¨Ê¹ËüºöÈ»¾ßÓÐÀ©Õ¹ÐÔ¡£
ʲôÊÇÀ©Õ¹ÐÔ£¿
±ØÐë¾ßÓм¸Ï¼¸µã£º
ºáÏòÀ©Õ¹£º¸ü¶àµÄserver¿ÉÒÔ´øÀ´¸ü¸ßµÄÐÔÄÜ ......
ÈçºÎÉú³Éexplain plan?
¡¡¡¡½â´ð:ÔËÐÐutlxplan.sql. ½¨Á¢plan ±í
¡¡¡¡Õë¶ÔÌض¨SQLÓï¾ä£¬Ê¹Óà explain plan set statement_id = 'tst1' into plan_table
¡¡¡¡ÔËÐÐutlxplp.sql »ò utlxpls.sql²ì¿´explain plan
EXPLAIN PLAN ÊÇÒ»¸öºÜºÃµÄ·ÖÎöSQLÓï¾äµÄ¹¤¾ß,ËüÉõÖÁ¿ÉÒÔÔÚ²»Ö´ÐÐSQLµÄÇé¿öÏ·ÖÎöÓï¾ä. ͨ¹ý·ÖÎö,ÎÒÃǾͿÉÒÔÖ ......
SQL *PLUS RepostµÄ¿ª·¢·½·¨
ʹÓÃSQL*PLUS ¿ÉÖ±½ÓÔÚIE BrowserÖÐÉú³É¹æÕûµÄ×Ö·ûÐÍReport. ʵÏÖ·½·¨¼òµ¥£¬²¼ÊðÈÝÒס£
·½·¨:
1. ÀûÓÃÎı¾±à¼Æ÷±àдSQL*PLUS ½Å±¾£¬±£´æ³É .sql Îļþ¡£
2. ÉÏ´«sql ÎļþÖÁÓ¦ÓõÄsql Ŀ¼¡£
3.  ......