rsql: add page (#17178)

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>
Co-authored-by: Managor <42655600+Managor@users.noreply.github.com>

pages/common/rsql.md

@@ -0,0 +1,32 @@
+# rsql
+
+> SQL client to interface with databases and other data sources inside the terminal.
+> More information: <https://github.com/theseus-rs/rsql>.
+
+- Enter interactive mode:
+
+`rsql`
+
+- Connect to a database (e.g. PostgreSQL):
+
+`rsql --url {{"postgresql://user:pass@localhost/mydb"}}`
+
+- Connect to a PostgreSQL database with SSL:
+
+`rsql --url {{"postgresql://user:pass@localhost/db?sslmode=require"}}`
+
+- Connect to a MySQL database with a specified charset:
+
+`rsql --url {{"mysql://user:pass@localhost/db?charset=utf8mb4"}}`
+
+- Run a query and exit:
+
+`rsql --url {{"sqlite://database.db"}} -- "SELECT * FROM users LIMIT 10"`
+
+- Set default format:
+
+`rsql --url {{"sqlite://db.sqlite"}} --format json`
+
+- Connect to file and use custom line separator:
+
+`rsql --url {{"delimited://data.txt?separator=|&has_header=true"}}`