[Video 27 - User Parameters Part 1](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=11)(https://youtu.be/Ct5Nc6K_Jak)
欄位1的準則中「> :變數1」
[Video 27 - User Parameters Part 1](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=11)(https://youtu.be/Ct5Nc6K_Jak)
欄位1的準則中「> :變數1」
src: [Video 28 - User Parameters Part 2](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=11)(https://youtu.be/lPZrFaVyvxc)
在查詢功能的準則中使用「:」+「變數名稱」,在 sql 下變成如下:
[Video 26 - Limit Distinct Calculations and Constants](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=11)(https://youtu.be/NxYFbNDgxQg)
一、sql 列出指定筆數的描述字為在最後面加上「limit」+「筆數」
[Video 25 - Query IN](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=10)(https://youtu.be/h1hwDlM653w)
準則:in ('字串';'字串')
[Video 24 - Query Between](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=10)(https://youtu.be/gSxTb68LewU)
準則:between … and …
src:[Video 22 - Wildcards](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=9)(https://youtu.be/JsHegDc2-iA)
src: [Video 23 - NULLs](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=10)(https://youtu.be/Bx-YlmDGUC4)
src: [Video 21 - Where Part 2](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=9)(https://youtu.be/Kn-ptRwThIo)
使用查詢的準則,可重覆列出欄位,以設定條件。
How to find all the foreign key records that do not have a primary key using a subquery (a query inside a query). Subquerys can produce the same result set as a Join as well the opposite of a join result set 如何利用子查詢找出沒有主關鍵值的資料。子查詢可產生與join相反的結果。
src: [Video 42 - SQL SubQuery](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=15)(https://youtu.be/X87P7ADNF_4)
src: [Video 41 - SQL Join Part2](https://thefrugalcomputerguy.com/grouppg.php?ser=15&grp=15)[影片連接](https://youtu.be/KAVvOf2fVlM)