mysql-error-1242

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if "Subquery returns more than 1 row" consider it NULL

I\'m trying to sync store ids on newtable with the ids from the maintable here: UPDATE newtable t SET t.store_id = (SELECT store_id FROM maintable s[详细]

2023-03-19 16:29 分类：问答
MySQL: How to fetch data from two table and store into one table

I have three table.2 data comes from 2 table and insert it into another table. Let: tbl_id hold the field id and tbl_msg hold the field msg.[详细]

2023-03-18 20:24 分类：问答
Problems copying data from one table to another via UPDATE and INSERT INTO

I have two tables and need to move data from one to the other. I just want to move specific values from the first column, i.e. if they = ni (varchar) to a new column in the second.[详细]

2023-03-15 19:35 分类：问答
Django subquery problem "Subquery returns more than 1 row"

I have three related models like class City(models.Model): name = models.CharField(max_length=200, blank=False)[详细]

2023-03-07 20:15 分类：问答
Insert into MySQL a huge number of rows, based on subquery... having trouble

So, what I am trying to do is insert a row of NONE, $country for every country that exists in the table.[详细]

2023-03-04 20:18 分类：问答
Help with simple SQL statement

I have a user table and user_friend table. 开发者_开发技巧user_friend shows who I am friend with (so it\'s uid and fid). I want to get the info of all my friends, so I did:[详细]

2023-03-02 12:44 分类：问答
MySql Subquery returns more than 1 row

im having some problems to query at mysql a self many to many relationship i got a Person table and a Friendship table[详细]

2023-02-20 12:14 分类：问答
Subquery returns more than 1 row in mysql

I am executing the following query and got the error \"Subquery returns more than 1 row\" My Query is[详细]

2023-02-19 08:35 分类：问答
mysql query room availability

Having looked at some of the other mysql availability query questions on here has got me so far, but the way mine works is slightly different to the others.[详细]

2023-02-13 11:30 分类：问答
Update a table by selecting data from another table MySQL query

I have two tables Order Table or_idcount status 120 230 320 Order_Details Table ordetailor_idstatus 111 211 320[详细]

2023-02-12 21:40 分类：问答