update links

snowme34 · Apr 20, 2019 · 2aaf4af · 2aaf4af
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diff --git a/cspell_dict_bash.txt b/cspell_dict_bash.txt
@@ -570,4 +570,6 @@ rikai
 rikaikun
 
 Livelock
-herlihy
+herlihy
+
+SQLZOO
diff --git a/docs/source/links/cuddly_links_collection.md b/docs/source/links/cuddly_links_collection.md
@@ -1,6 +1,6 @@
 # Cuddly Links Collection
 
-*Last update date: 4/14/2019.*
+*Last update date: 4/19/2019.*
 
 My collection of web sites. Mostly CS stuff, some humanity ones.
 
@@ -126,6 +126,8 @@ Self-study materials and online courses.
 
   * Or search online and on YouTube for more.
 
+* [A Beginner's Guide to Programming Languages - IT Hare on Soft.ware](http://ithare.com/a-beginners-guide-to-programming-languages/)
+
 #### Programming Languages
 
 C/C++:
@@ -180,6 +182,11 @@ Go:
 
 * [Go wiki](https://github.com/golang/go/wiki)
 
+SQL:
+
+* [SQLZOO](https://sqlzoo.net/wiki/SQL_Tutorial)
+* [SQLBolt](https://sqlbolt.com/)
+
 #### General Online Computer Science Schools
 
 * [freeCodeCamp](https://www.freecodecamp.org/)