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refactor:並列処理できないコメント追加、例外で使用するユーザ変数の初期化、$$終端文字の追加

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y-ono-r 2022-07-21 13:30:26 +09:00
parent c62db70d9a
commit 805dfb26de
1 changed files with 18 additions and 16 deletions
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34
rds_mysql/stored_procedure/crm_history.sql
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@ -1,5 +1,6 @@
-- A5M2で実行時にSQL区切り文字を「;」以外にすること
-- $$から始まる文字は後からREPLACEする文字を示す独自ルール
-- $$から始まり$$で終わる文字は後からREPLACEする文字を示す独自ルール
-- crm_historyストアドプロシージャは、同一セッション内での並列処理を実行することができない
CREATE PROCEDURE crm_history(target_table VARCHAR(255), target_column VARCHAR(255))
BEGIN
-- 例外処理
@ -15,21 +16,22 @@ BEGIN
SET MYSQL_ERRNO = @error_state, MESSAGE_TEXT = @error_msg;
END;
SET @error_state = NULL, @error_msg = NULL;
START TRANSACTION;
-- ②-3で利用する一時テーブル削除のSQLを準備
-- 例外処理でも利用するため先に記述
SET @drop_tmp_table = '
DROP TEMPORARY TABLE IF EXISTS $$target_table_make_history_tmp
DROP TEMPORARY TABLE IF EXISTS $$target_table$$_make_history_tmp
';
SET @drop_tmp_table = REPLACE(@drop_tmp_table, "$$target_table", target_table);
SET @drop_tmp_table = REPLACE(@drop_tmp_table, "$$target_table$$", target_table);
PREPARE drop_tmp_table_stmt from @drop_tmp_table;
-- ①-1 Salesforce側で更新されたデータの適用開始日時と適用終了日時を設定する
SET @new_history_save = '
UPDATE $$target_table
UPDATE $$target_table$$
SET
start_datetime = $$target_column
start_datetime = $$target_column$$
, end_datetime = "9999-12-31 00:00:00"
, upd_user = CURRENT_USER()
, upd_date = CURRENT_TIMESTAMP()
@ -37,21 +39,21 @@ BEGIN
start_datetime IS NULL
AND end_datetime IS NULL
';
SET @new_history_save = REPLACE(@new_history_save, "$$target_table", target_table);
SET @new_history_save = REPLACE(@new_history_save, "$$target_column", target_column);
SET @new_history_save = REPLACE(@new_history_save, "$$target_table$$", target_table);
SET @new_history_save = REPLACE(@new_history_save, "$$target_column$$", target_column);
PREPARE new_history_save_stmt from @new_history_save;
EXECUTE new_history_save_stmt;
DEALLOCATE PREPARE new_history_save_stmt;
-- ②-1 Salesforce側で更新されたデータを検出用一時テーブルの作成
SET @make_history_tmp_create = '
CREATE TEMPORARY TABLE $$target_table_make_history_tmp
CREATE TEMPORARY TABLE $$target_table$$_make_history_tmp
SELECT
id
, MIN($$target_column) AS min_start_datetime
, MIN($$target_column$$) AS min_start_datetime
, MAX(start_datetime) AS max_start_datetime
FROM
$$target_table
$$target_table$$
WHERE
end_datetime = "9999-12-31 00:00:00"
GROUP BY
@ -59,16 +61,16 @@ BEGIN
HAVING
count(id) = 2
';
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);
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;
DEALLOCATE PREPARE make_history_tmp_create_stmt;
-- ②-2 「②-1」で取得した全件に更新処理を行う
SET @update_end_datetime = '
UPDATE $$target_table tt
LEFT JOIN $$target_table_make_history_tmp mht
UPDATE $$target_table$$ tt
LEFT JOIN $$target_table$$_make_history_tmp mht
ON tt.id = mht.id
AND tt.start_datetime = mht.min_start_datetime
SET
@ -78,8 +80,8 @@ BEGIN
WHERE
mht.id IS NOT 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);
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;
DEALLOCATE PREPARE update_end_datetime_stmt;