feat(csv): ♻️ Add another sqlite example

Author: chrisguest75

.gitignore

@@ -1,2 +1,3 @@
 .DS_Store
 .env
+out

12_csv/README.md

@@ -39,19 +39,6 @@ Convert a TSV to CSV
 tr '\t' ',' < ./file.tsv > ./file.csv
 ```
 
-## Generate CSV from CPU data
-
-```sh
-echo "time,cpu,pid,process" > ./cpu.csv
-for index in $(seq 0 100 );
-do
-    ps -opcpu -opid -ocomm -cax | grep -i windowserver | sort -r | sed "s/^/$(date '+%H:%M:%S') /" | sed 's/\t/ /g' | sed 's/  */ /g' | sed 's/ /,/g'
-    sleep 1
-done >> ./cpu.csv
-
-sqlite3 :memory: -cmd '.mode csv' -cmd '.import cpu.csv cpu' 'SELECT time, COUNT(*), AVG(cpu) FROM cpu '
-```
-
 ## Remove Columns
 
 ```sh
@@ -61,5 +48,4 @@ cut -d',' -f4- ./out/mydata.csv > ./out/mydata_3_less_columns.csv
 ## Resources
 
 - My jq examples [here](../jq/README.md)
-- https://til.simonwillison.net/sqlite/one-line-csv-operations
 - TidyViewer [here](https://github.com/alexhallam/tv)

12_csv/SQLITE.md

@@ -0,0 +1,32 @@
+# SQLITE CSV QUERYING
+
+## Logs
+
+```sh
+sqlite3 :memory:
+
+.help .mode
+
+export CSV_FILE=''
+# import and print out schema (list is | seperator)
+sqlite3 :memory: -cmd '.mode list' -cmd ".import ${CSV_FILE} logs -v" 'SELECT * FROM logs LIMIT 10'
+# group by
+sqlite3 :memory: -cmd '.mode list' -cmd ".import ${CSV_FILE} logs -v" 'SELECT ip, COUNT(ip) FROM logs GROUP BY ip'
+```
+
+## Generate CSV from CPU data
+
+```sh
+echo "time,cpu,pid,process" > ./cpu.csv
+for index in $(seq 0 100 );
+do
+    ps -opcpu -opid -ocomm -cax | grep -i windowserver | sort -r | sed "s/^/$(date '+%H:%M:%S') /" | sed 's/\t/ /g' | sed 's/  */ /g' | sed 's/ /,/g'
+    sleep 1
+done >> ./cpu.csv
+
+sqlite3 :memory: -cmd '.mode csv' -cmd '.import cpu.csv cpu' 'SELECT time, COUNT(*), AVG(cpu) FROM cpu '
+```
+
+## Resources
+
+- https://til.simonwillison.net/sqlite/one-line-csv-operations