diff --git a/bin/sql-to-migration-format.awk b/bin/sql-to-migration-format.awk
new file mode 100755
index 0000000..caacb6e
--- /dev/null
+++ b/bin/sql-to-migration-format.awk
@@ -0,0 +1,23 @@
+#!/usr/bin/awk -f
+
+BEGIN {
+	OFS = "\t"
+}
+
+{
+	login = $1
+	domain = $3
+	data[login][domain] = 1
+}
+
+END {
+	for ( login in data ) {
+		domains = ""
+		nb = 0
+		for ( domain in data[login] ) {
+			nb += 1
+			domains = (domains "\t" domain)
+		}
+		print nb, login, domains
+	}
+}