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-rw-r--r--doc/sql_conventions.bb6
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/sql_conventions.bb b/doc/sql_conventions.bb
index 2deb3cff6..f6a4e251f 100644
--- a/doc/sql_conventions.bb
+++ b/doc/sql_conventions.bb
@@ -56,7 +56,11 @@ $r = q("SELECT * FROM mail WHERE uid=%d AND $sql_extra ORDER BY created DESC LIM
[b]NULL dates[/b]
[li]To be written
-[code]Example[/code][/li]
+[code]// Example
+$r = q("DELETE FROM mail WHERE expires != '%s' AND expires < %s ",
+ dbesc(NULL_DATE),
+ db_utcnow()
+);[/code][/li]
[b]Storing binary data[/b]
[li]To be written