我是Linux世界的新手。
有没有资料如何解释Ubuntu终端的调试日志?
例如我从终端登录,登录Odoo 10进程:
DROP TABLE IF EXISTS D,M,S;
CREATE TABLE D(DID INT, NAME VARCHAR(20), ADDR VARCHAR(20));
CREATE TABLE M(DID INT, SID INT);
CREATE TABLE S(ID INT, NAME VARCHAR(20));
INSERT INTO D VALUES(1,'AAA',',pUNE,KOTHRUD'),(2,'BAB',',pune,KOTHRUD'),(3,'CCC',',PUNE,,KOTHRUD');
INSERT INTO M VALUES(1,1),(1,2),(2,1);
INSERT INTO S VALUES(1,'XXX'),(2,'YYY');
select CONCAT(D.did, ',', 'tbl_doctors') AS ID ,D.name,(S.name) As spname, D.addr
FROM D
LEFT JOIN M ON D.did = M.did
LEFT JOIN S ON M.sid = S.id
WHERE (D.addr LIKE '%Pune%' AND D.addr LIKE '%kothrud%')
AND (S.name LIKE "%a%" OR D.name LIKE "%a%")
group by D.addr
+---------------+------+--------+---------------+
| ID | name | spname | addr |
+---------------+------+--------+---------------+
| 1,tbl_doctors | AAA | XXX | ,pUNE,KOTHRUD |
+---------------+------+--------+---------------+
1 row in set (0.00 sec)
现在,我可以在这里理解Odoo对象,但在每个选项之前'u'的含义是什么?