diff --git a/mysql/size.md b/mysql/size.md
new file mode 100644
index 0000000..ebeaad8
--- /dev/null
+++ b/mysql/size.md
@@ -0,0 +1,26 @@
+---
+format: markdown
+...
+
+Pour obtenir la taille de *toutes* les bases de données présentes sur le serveur :
+
+```bash
+SELECT table_schema AS 'DB Name', ROUND(SUM(data_length + index_length) / 1024 / 1024, 1) AS 'DB Size in MB' FROM information_schema.tables GROUP BY table_schema;
+```
+Pour obtenir la taille d'une base en particulier :
+
+```bash
+SELECT table_schema AS 'DB Name', ROUND(SUM(data_length + index_length) / 1024 / 1024, 1) AS 'DB Size in MB' FROM information_schema.tables WHERE table_schema = '##DBNAME##' GROUP BY table_schema;
+```
+
+Pour obtenir la taille de toutes les tables d'un base de données spécifique :
+
+```bash
+SELECT TABLE_NAME AS `Table`, ROUND((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024) AS `Size (MB)` FROM information_schema.TABLES WHERE TABLE_SCHEMA = "<DBNAME>" ORDER BY (DATA_LENGTH + INDEX_LENGTH) DESC;
+```
+
+Pour obtenir la taille de toutes les tables de *toutes* les bases de données :
+
+```bash
+SELECT TABLE_SCHEMA AS `Database`, TABLE_NAME AS `Table`, ROUND((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024) AS `Size (MB)` FROM information_schema.TABLES ORDER BY (DATA_LENGTH + INDEX_LENGTH) DESC;
+```