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ALTER TABLE ±íÃû ADD(ÁÐÃû Êý¾ÝÀàÐÍ);
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ALTER TABLE emp ADD(weight NUMBER(38,0));
ÐÞ¸ÄÒ»¸öÁеÄÊý¾ÝÀàÐÍ(Ò»°ãÏÞÓÚÐ޸ij¤¶È£¬ÐÞ¸ÄΪһ¸ö²»Í¬ÀàÐÍʱÓÐÖî¶àÏÞÖÆ):
ALTER TABLE ±íÃû MODIFY(ÁÐÃû Êý¾ÝÀàÐÍ);
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ALTER TABLE emp MODIFY(weight NUMBER(3,0) NOT NULL);
Demo:
ALTER TABLE PY_CCORDER ADD(
 CCORD_REFUNDEDTIMES INTEGER,
 CCORD_REFUNDEDAMOUNT NUMBER(15,2)
);
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ALTER TABLE ±íÃû RENAME COLUMN µ±Ç°ÁÐÃû TO ÐÂÁÐÃû;
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ALTER TABLE emp RENAME COLUMN weight TO weight_new;
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ALTER TABLE ±íÃû DROP COLUMN ÁÐÃû;
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ALTER TABLE emp DROP COLUMN weight_new;
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ALTER TABLE µ±Ç°±íÃû RENAME TO бíÃû;
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ALTER TABLE bouns RENAME TO bonus_new


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    ²åÈërawÊý¾Ý²Ù×÷:
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oracleÌí¼Ó×Ö¶ÎÒýÆðµÄÎÊÌâ

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time:2010-05-27
oracleÌí¼Ó×Ö¶ÎÒýÆðµÄÎÊÌâ
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WindowsϵÄOracleÀ䱸·Ý½Å±¾£¬ÒѾ­²âÊÔͨ¹ý

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Îļþoracle_cool_backup.bat£¬ÄÚÈÝÈçÏ£º
Remark ¶¨Òåʱ¼äÈÕÆÚ±äÁ¿
set date=%date:~0,10%
set h=%time:~0,2%
set m=%time:~3,2%
set s=%time:~6,2%
set tempvar=%date%-%h%-%m%-%s%
md "c:/temp/%tempvar%/"
echo %tempvar%
sqlplus /nolog @oracle_cool_backup.sql % ......

ʵÀý½²½âOracleÊý¾Ý¿âÉèÖÃĬÈϱí¿Õ¼äÎÊÌâ

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SQL SERVERÖÐ ÀûÓ÷½·¨Éú³ÉÁ÷Ë®ºÅ

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use master
go
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