From fd8f792961c4b5e7beb225a40c4c29ca05132f6c Mon Sep 17 00:00:00 2001
From: y-ono-r <95060536+y-ono-r@users.noreply.github.com>
Date: Mon, 1 Aug 2022 20:02:29 +0900
Subject: [PATCH] =?UTF-8?q?feat:crm=5Fhistory=E3=81=AE=E6=96=B0=E8=A6=8F?=
 =?UTF-8?q?=E8=BF=BD=E5=8A=A0?=
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---
 rds_mysql/stored_procedure/crm_history.sql | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 rds_mysql/stored_procedure/crm_history.sql

diff --git a/rds_mysql/stored_procedure/crm_history.sql b/rds_mysql/stored_procedure/crm_history.sql
new file mode 100644
index 00000000..cf2ca1d8
--- /dev/null
+++ b/rds_mysql/stored_procedure/crm_history.sql
@@ -0,0 +1,24 @@
+-- A5M2で実行時にSQL区切り文字を「;」以外にすること
+
+CREATE PROCEDURE crm_history(target_table VARCHAR(255), target_column VARCHAR(255))
+BEGIN
+	SET @new_history_save = 'UPDATE @@target_table SET start_datetime = @@target_column, end_datetime = "9999-12-31 00:00:00" WHERE start_datetime IS NULL AND end_datetime IS NULL';
+	SET @new_history_save = REPLACE(@new_history_save, "@@target_table", target_table);
+	SET @new_history_save = REPLACE(@new_history_save, "@@target_column", target_column);
+	PREPARE new_history_save_stmt from @new_history_save;
+	EXECUTE new_history_save_stmt;
+
+	SET @make_history_tmp_create = 'CREATE TEMPORARY TABLE make_history_tmp SELECT id, MIN(@@target_column) AS min_start_datetime, MAX(start_datetime) AS max_start_datetime FROM @@target_table WHERE end_datetime = "9999-12-31 00:00:00" GROUP BY id';
+	SET @make_history_tmp_create = REPLACE(@make_history_tmp_create, "@@target_table", target_table);
+    SET @make_history_tmp_create = REPLACE(@make_history_tmp_create, "@@target_column", target_column);
+	PREPARE make_history_tmp_create_stmt from @make_history_tmp_create;
+	EXECUTE make_history_tmp_create_stmt;
+
+	SET @update_end_datetime = 'UPDATE @@target_table tt LEFT JOIN make_history_tmp mht ON tt.id = mht.id AND tt.start_datetime = mht.min_start_datetime SET start_datetime = mht.max_start_datetime - INTERVAL 1 SECOND WHERE mht.id IS NULL';
+	SET @update_end_datetime = REPLACE(@update_end_datetime, "@@target_table", target_table);
+    SET @update_end_datetime = REPLACE(@update_end_datetime, "@@target_column", target_column);
+	PREPARE update_end_datetime_stmt from @update_end_datetime;
+	EXECUTE update_end_datetime_stmt;
+
+	DROP TEMPORARY TABLE make_history_tmp;
+END
\ No newline at end of file