Table 1
-------
LANG_VALUE
LANG_DESC
Table 2
-------
EmpId
LANG1
LANG2
LANG3
LANG4
LANG5
LANG6
它看起來像如下:連接兩個表 - 多列單列
Table 1
-------
LANGVALUE LANGDESC
-------------------
SPAN SPANISH
GERM GERMAN
Table 2
-------
EmpId LANG1 LANG2 LANG3 LANG4 LANG5 LANG6
-----------------------------------------
1 SPAN NULL NULL NULL NULL NULL
2 GERM SPAN NULL NULL NULL NULL
3 GERM NULL NULL NULL NULL NULL
預期結果:
EmpId LANG1 LANG2 LANG3 LANG4 LANG5 LANG6
-----------------------------------------
1 SPANISH NULL ...
2 GERMAN SPANISH NULL...
3 GERMAN NULL...
如何做到這一點的SQL查詢?
感謝這有助於... – Nick 2009-10-29 22:33:13