ORACLE PL/SQL ¼Ç¼(Record)ѧϰ±Ê¼Ç(¶þ)
¶þ¡¢ÒÔÐβεÄÐÎʽ¶¨ÒåºÍʹÓüǼ¡¢¶ÔÏóÀàÐÍ
ÔÚÓÃ×÷ÐÎʽ²ÎÊýʱ£¬¼Ç¼ÀàÐͺͶÔÏóÀàÐÍÓкܶàÏà֮ͬ´¦¡£ÔÚ½«ËüÃÇ×÷ΪÓαꡢº¯Êý»ò¹ý³ÌµÄÐÎʽ²ÎÊýÒÔǰ£¬ÊÂÏȶ¼±ØÐ붨ÒåÒ»¸ö¼Ç¼ÀàÐÍ»òÕß¶ÔÏóÀàÐÍ¡£
ÈçÏÂÀýËùʾ£º
¼Ç¼
DECLARE
-- Define a record type.
TYPE individual_record IS RECORD
(individual_id INTEGER
,first_name VARCHAR2(30 CHAR)
,middle_initial VARCHAR2(1 CHAR)
,last_name VARCHAR2(30 CHAR));
-- Define a record type.
TYPE address_record IS RECORD
(address_id INTEGER
,individual_id INTEGER
,street_address1 VARCHAR2(30 CHAR)
,street_address2 VARCHAR2(30 CHAR)
,street_address3 VARCHAR2(30 CHAR)
,city VARCHAR2(20 CHAR)
,state VARCHAR2(20 CHAR)
,postal_code VARCHAR2(20 CHAR)
,country_code VARCHAR2(10 CHAR));
-- Define a record type of two user defined record type variables.
TYPE individual_address_record IS RECORD
(individual INDIVIDUAL_RECORD
,address ADDRESS_RECORD);
-- Define a variable of a user defined compound record type.
individual_address INDIVIDUAL_ADDRESS_RECORD;
-- Define a local procedure to manage addresses inserts.
PROCEDURE insert_address
(address_in ADDRESS_RECORD) IS
BEGIN
-- Insert the values into the target object.
INSERT
INTO addresses
VALUES
(address_in.address_id
,address_in.individual_id
,address_in.street_address1
,address_in.street_address2
,address_in.street_address3
,address_in.city
,address_in.state
,address_in.postal_code
,address_in.country_code);
END insert_address;
-- Define a local procedure to manage addresses inserts.
PROCEDURE insert_individual
(individual_in INDIVIDUAL_RECORD) IS
BEGIN
-- Insert the values into the table.
INSERT
INTO individuals
VALUES
(individual_in.individual_id
,individual_in.first_name
,individual_in.middle_initial
,individual_in.last_
Ïà¹ØÎĵµ£º
Êý¾Ý×Öµädict×ÜÊÇÊôÓÚOracleÓû§sysµÄ¡£
¡¡¡¡1¡¢Óû§£º
¡¡¡¡¡¡select username from dba_users;
¡¡¡¡¸Ä¿ÚÁî
¡¡¡¡¡¡alter user spgroup identified by spgtest;
¡¡¡¡2¡¢±í¿Õ¼ä£º
¡¡¡¡¡¡select * from dba_data_files;&nbs ......
2009-07-16 10:59
Ë÷Òý´´½¨²ßÂÔ
1.µ¼ÈëÊý¾ÝºóÔÙ´´½¨Ë÷Òý
2.²»ÐèҪΪºÜСµÄ±í´´½¨Ë÷Òý
3.¶ÔÓÚȡֵ·¶Î§ºÜСµÄ×ֶΣ¨±ÈÈçÐÔ±ð×ֶΣ©Ó¦µ±½¨Á¢Î»Í¼Ë÷Òý
4.ÏÞÖÆ±íÖеÄË÷ÒýµÄÊýÄ¿
5.ΪË÷ÒýÉèÖúÏÊʵÄPCTFREEÖµ
6.´æ´¢Ë÷ÒýµÄ±í¿Õ¼ä×îºÃµ¥¶ÀÉ趨
´´½¨²»Î¨Ò»Ë÷Òý
create index emp_ename on employees(ename)
table ......
½çÃæ¿ª·¢ÈËÔ±±¨ÓкܶàÖØ¸´Êý¾ÝÔÚÓû§È¨ÏÞ±í¡£È»ºóÎÒɾ³ýÁ˱íÊý¾Ýdelete ·½Ê½£¬ÐÞ¸ÄÁ˶ÔÓ¦µÄ´æ´¢¹ý³Ìʹ֮²»Öظ´£¡
ºóÀ´·¢ÏÖ ÖØÐÂÀ»ØµÄÊý¾ÝûȨÏÞ¡£ Ö»ºÃÉÁ»Øµ½½ñÌìÁ賿ÁË£¡
SQL> ALTER TABLE BA.T_POWER_ADMIN ENABLE ROW MOVEMENT;
Table altered
SQL> flashback table ba.t_Power_Admin to tim ......
¡¡¡¡Ò»¡¢Ê²Ã´ÊÇMTS
¡¡¡¡MTS = Multi-Threaded ServerMTSÊÇORACLE SERVERµÄÒ»¸ö¿ÉÑ¡µÄÅäÖÃÑ¡Ôñ£¬ÊÇÏà¶ÔDEDICATE·½Ê½¶øÑÔ£¬Ëü×î´óµÄÓŵãÊÇÔÚÒÔ²»ÓÃÔö¼ÓÎïÀí×ÊÔ´(ÄÚ´æ)µÄǰÌáÏÂÖ§³Ö¸ü¶àµÄ²¢·¢µÄÁ¬½Ó¡£Joseph C.JohnsonÒԲ͹ݸø³öÒ»¸öMTSµÄÐÎÏóµÄ±ÈÓ÷
¡¡¡¡¼ÙÉèORACLEÊÇÒ»¼Ò²Í¹Ý£¬µ±Äã×ß½øÒ»¼Ò²Í¹ÝʱÄã¸Ð¾õ×îÊæ·þµÄ·þÎñ·½Ê½¾ÍÊ ......
½¨±í
create table users(
id number(4) primary key,
username varchar2(10),
password varchar2(10)
)
²éѯ±í²¢½âËø±í(¼´¿ÉÒÔµã»÷ÊäÈë¿òÏÂÃæµÄ"Ëø"ͼ±ê¹¤¾ß, ¼´"Edit data")
select * from users for update
ɾ³ý±íÖжàÓàµÄÁÐ
alter table mobilephone drop column mobiletype
×ªÔØ
------------------- ......