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Ŀ¼ CONTENTS
¸½1. ÖØµã±í½á¹¹½²½â.........................................................................................................................3
¸½1.1. ·ÑÓÃÏà¹Ø±í.........................................................................................................................3
¸½1.2. ²¡ÈËÏà¹Ø±í.........................................................................................................................4
¸½1.3. Ò©Æ·¼°ÊÕ·ÑÏîÄ¿Ïà¹Ø.........................................................................................................5
¸½1.4. ÖØÒªÊý¾Ý¹ØÁª.....................................................................................................................6
¸½1.4.1. ²¡ÈË·ÑÓúÍÒ©Æ·Ã÷ϸ.................................................................................................6
¸½1.4.2. Ò©Æ·»ù´¡ÏîÄ¿.............................................................................................................7
¸½1.4.3. Ò©Æ·ÒµÎñÏà¹Ø±í.........................................................................................................7
¸½2. SQL»ù±¾Óï·¨............................................................................................................................9
¸½2.1. SELECT»ù±¾Óï·¨..............................................................................................................9
¸½2.2. SQLÓï¾äÊéд¹æÔò.............................................................................................................9
¸½2.3. Êý×ÖºÍÈÕÆÚÊý¾ÝµÄÔËËã.....................................................................................................9
¸½2.4. NULLÖµµÄ¶¨Òå..................................................................................................................9
¸½2.5. ʹÓñðÃû±íʾÁÐ...............................................................................................................10
¸½2.6. ʹÓÃÁ¬½Ó²Ù×÷...................................................................................................................10
¸½2.7. ÖØ¸´ÐÐ/È¥µôÖØ¸´ÐÐ..........................................................................................................10
¸½2.8. ²éѯ·ûºÏÒªÇóµÄÊý¾Ý.......................................................................................................11
¸½2.9. Ö÷Òª¹ØÏµÔËËã·û...............................................................................................................11
¸½2.10. ÆäËü¹ØÏµÔËËã·û...........................................................................................................11
¸½2.11. Âß¼±í´ïʽ...................................................................................................................12
¸½2.12. ÔËËãÓÅÏȼ¶...................................................................................................................12
¸½2.13. ORDER BY×Ó¾ä..........................................................................................................13
¸½2.14. GROUPBYµÄʹÓÃ......................................................................................................13
¸½2.15. HAVINGµÄʹÓÃ...........................................................................................................13
¸½2.16. ¼¯ºÏ²Ù×÷.......................................................................................................................13
¸½3. ³£ÓÃORACLEº¯Êý·ÖÎö........................................................................................................14
¸½4. ×Ô¶¨Ò庯Êý·ÖÎö.......................................................................................................................21
¸½5. ×Ô¶¨Ò屨±íQA........................................................................................................................29
¸½5.1. Ïà¹Ø¸ÅÄîÀà.......................................................................................................................29
¸½5.2. Êý¾Ý½á¹¹Àà.......................................................................................................................32
¸½5.3. SQL¼¼ÇÉÀà.......................................................................................................................40
¸½5.4. ²Ù×÷¼¼ÇÉÀà.......................................................................................................................49
¸½6. Ïà¹Ø¹¤¾ß½éÉÜ...........................................................................................................................53
¸½6.1. PL/SQLDEVELOPER..........................................................................................................53
¸½6.1.1. ¹¦ÄܽéÉÜ...................................................................................................................53
¸½6.1.2. ¾ßÌå²Ù×÷...................................................................................................................55
- 2 -
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