where-in

问题 After reading many tutorials, I found that there are many ways to bind arguments on prepared statement in Go, some of them SELECT * FROM bla WHERE x = ?col1 AND y = ?col2 SELECT * FROM bla WHERE x = ? AND y = ? SELECT * FROM bla WHERE x = :col1 AND y = :col2 SELECT * FROM bla WHERE x = $1 AND y = $2 First question , what is the cross-database way to bind arguments? (that works on any database) Second question , none of the tutorial I've read mention about LIKE statement, how to bind arguments

问题 After reading many tutorials, I found that there are many ways to bind arguments on prepared statement in Go, some of them SELECT * FROM bla WHERE x = ?col1 AND y = ?col2 SELECT * FROM bla WHERE x = ? AND y = ? SELECT * FROM bla WHERE x = :col1 AND y = :col2 SELECT * FROM bla WHERE x = $1 AND y = $2 First question , what is the cross-database way to bind arguments? (that works on any database) Second question , none of the tutorial I've read mention about LIKE statement, how to bind arguments

问题 I want to know how I can format a string that is returned by the API so that Mysql can process it. This is the string my API returns: bad_string = "History,Romance,Business & Money" Attempt 1: cursor.execute("SELECT * FROM book WHERE scrape_category IN (%s) ORDER BY RAND() LIMIT 15", bad_string) Returns this message: Traceback (most recent call last): File "C:\PATH", line 23, in <module> cursor.execute("SELECT * FROM book WHERE scrape_category IN (%s) ORDER BY RAND() LIMIT 15", bad_string)

问题 Morning guys, I would like to update multiple row using explode function and where in for code igniter, but the problem is, all rows all updated. here is my controller : $ids = explode(',', $this->post('id')); $this->chatmod->update(array('id'=>$ids),$data); my model : public function update($ids=null,$data=null) { $this->db->where_in($ids); $this->db->update($this->table, $data); return true; } 回答1: For updating using column id you need to pass the column name in the where_in function like

问题 I've got a couple of duplicates in a database that I want to inspect, so what I did to see which are duplicates, I did this: SELECT relevant_field FROM some_table GROUP BY relevant_field HAVING COUNT(*) > 1 This way, I will get all rows with relevant_field occuring more than once. This query takes milliseconds to execute. Now, I wanted to inspect each of the duplicates, so I thought I could SELECT each row in some_table with a relevant_field in the above query, so I did like this: SELECT *

问题 How to write sql query I need something like Insert Into database.table (userID,credID,time) values userId = for all in (10,15,12,17,14,267,16,689,18,7659,20) credID = for all in (1,2,3,4,5) time = constant (forall the same) now database structure userID,credID,time 10,34,2013-12-12 10,54,2013-12-12 so i must get userID,credID,time 10,34,2013-12-12 10,54,2013-12-12 10,1,2013-12-12 10,2,2013-12-12 10,3,2013-12-12 10,4,2013-12-12 10,5,2013-12-12 11,1,2013-12-12 11,2,2013-12-12 11,3,2013-12-12

问题 I have three tables in my database: Products id (int, primary key) name (varchar) Tags id (int, primary key) name (varchar) ProductTags product_id (int) tag_id (int) I'm doing SQL query to select products with assigned tags with given id's: SELECT * FROM Products JOIN ProductTags ON Products.id = ProductTags.product_id WHERE ProductTags.tag_id IN (1,2,3) GROUP BY Products.id I can either select products without assigned tags with given id's: SELECT * FROM Products JOIN ProductTags ON Products

问题 my array from $temp is Array ( [0] => 22 [1] => 26 [2] => 20 [3] => 24 ) or 22|26|20|24 when I use whereIn like this $robjeks = DB::table('objek')->whereIn('id', $temp)->get(); the result is 20|22|24|26| it's automatically sorted. I want it's not sorted. how to make it same like 22|26|20|24 ? thanks for your attention. 回答1: This has nothing to do with Laravel. Read here first: avoid Sorting by the MYSQL IN Keyword Then, to do this, you can use this code: $temp = [22, 26, 20, 24]; $tempStr =

问题 I want to retrieve data from the table based on a couple of columns, some with data, other with NULL. In the first code example below, the procedure is fine - all the rows are returned. In the second example no rows are returned - because NULL=NULL return FALSE. The third example is more or less what I have in mind, when the column has NULL values, then this clause has to be "ignored" and only the data in the first two columns are used to return the rows based on these two columns. SELECT *

问题 Here is my normal sql query using implode function: SELECT * from search_result WHERE skills IN ('".implode("','",$s_id)."'); Now I want to convert this to codeigniter form. I tried the following code but it fails $this->db->from('search_result'); $this->db->where_in('skills','".implode("','",$s_id)."'); $query = $this->db->get(); Here is my $s_id array: Array ( [0] => 2D Design [1] => 3D Design [2] => 3D Modelling ) So anyone please help me to do this. Thanks in advance :) 回答1: Official Doc