diff --git a/content/bdd_avancees/7-transactions/images/graphe_precedence.svg b/content/bdd_avancees/7-transactions/images/graphe_precedence.svg
new file mode 100644
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--- /dev/null
+++ b/content/bdd_avancees/7-transactions/images/graphe_precedence.svg
@@ -0,0 +1,266 @@
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