scenario: when the business level deletes (physically deletes) a piece of data from Table A, the data is inserted into Table B. set up a trigger on table A CREATE OR REPLACE TRIGGER cmsinfo AFTER delete ON tablea for each row BEGIN IF DELETING THEN ...
as shown below, I use jdbc to create a MySQL trigger, which is successfully created in navicat. After the sql2 is output, it runs successfully in navicat. However, when the program runs, it will prompt that there is a syntax error in the statement that ...
in sql server database, an insert trigger is set for a table, and a new view is created in the trigger. How to design and write statements? Thank you ...
class jingzhun(RedisSpider): name = "jingzhun" -sharp start_urls = [ https: rong.36kr.com ] redis_key = spiderQueue custom_settings = { "RANDOM_DELAY": 5, "SCHEDULER": "scrapy_re...
for the data requested by the backend, in order to implement the deletion API, you need to obtain the id, of the deleted data. Please tell me how to obtain it with jq. Thank you. ...
assume that concurrency is very high, with 1 million keys being put into redis, at the same time per second and with the same expiration time so redis cleans up 1 million keys at the same time, without blocking? ...
this is an online tutorial, set up or no effect location = favicon.ico { log_not_found off; access_log off; } nginx will still report an error 2018 04 03 00:00:13 [error] 71-sharp71: *16 FastCGI sent in stderr: "PHP mess...
try { connection.setAutoCommit(false); bankDao.transferMoney(+2000, 1, connection); 1 2000 if(true){ throw new RuntimeException(); } bankDao.transferMoney(-2000, 2, connection); 2 2000 ...