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作者 plover 在 PTT [ Database ] 看板的留言(推文), 共11則

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[SQL ] 求救

[ Database ]7 留言, 推噓總分: +3

作者: across - 發表於 2013/10/01 18:27(12年前)

4^F推plover:不一定會有金鑰，有可能只是單向的hash function10/03 15:26

[書籍] 請問有沒有有關sql複雜查詢的書.....

[ Database ]4 留言, 推噓總分: +2

作者: clericisaac - 發表於 2013/09/06 23:04(12年前)

4^F推plover:Inside SQL Server 2008, T-SQL Querying09/09 18:05

Re: [SQL ] 圖片存資料庫的缺點是？

[ Database ]14 留言, 推噓總分: +4

作者: cleanwind - 發表於 2013/05/02 14:46(12年前)

4^F推plover:看應用，事情沒有絕對05/04 00:50

[SQL ] select的SQL直接呼叫SP?

[ Database ]2 留言, 推噓總分: +2

作者: siaco - 發表於 2013/02/04 17:13(13年前)

1^F推plover:exec (mssql)02/05 00:27

[問題] pk的選取

[ Database ]5 留言, 推噓總分: +2

作者: keyman5566 - 發表於 2013/01/20 21:24(13年前)

2^F推plover:有些分冊的書共用一個ISBN，有些古董書沒有ISBN01/22 01:40

3^F推plover:我會用IDENTITY當PK，至於擁有者/類別，這是另一回事01/22 01:46

[SQL ] 從特定時間往前抓幾筆

[ Database ]3 留言, 推噓總分: +2

作者: dickenete - 發表於 2012/12/21 11:23(13年前)

3^F推plover:看有沒有identity可以運用，或者對Time建index12/22 10:25

[SQL ] 請問查詢條件無資料能否顯示筆數 0 呢？

[ Database ]3 留言, 推噓總分: +1

作者: blReader - 發表於 2012/12/18 13:59(13年前)

3^F推plover:要建 calendar table ((好用))12/18 21:38

[問題]新手想問這個table怎樣設計比較好

[ Database ]4 留言, 推噓總分: +3

作者: pppty - 發表於 2012/12/06 17:03(13年前)

4^F→plover:A，了不起就把ID normalize掉12/08 21:37

Re: 基本的SQL 減去min 做normalization

[ Database ]9 留言, 推噓總分: +4

作者: lbeeon - 發表於 2012/12/06 12:11(13年前)

8^F推plover:查一下，有subquery syntax, 但subquery只能在from12/08 21:34

9^F→plover:所以還是會繞到join，不管怎樣，這要兩步12/08 21:35

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