sqlite

问题 Currently I am facing the issue that newlines from a MySQL dump will be ignored when I put the data in a SQLite database. The "\r\n", which MySQL dumps, interprets SQLite as a string, so I have sentences like "nomnomnom\r\n nomnomnom" in the application instead of "nomnomnom nomnomnom". So my question is what have I to do that SQLite reads the linebreaks correctly? I have already googled a lot to find out what kind of newline syntax SQLite needs but to my surprise I haven't found any clear

问题 I want to do multiple parameterized inserts with SQLite in my code. For this : I have a single prepare statement outside of my loop as : error = sqlite3_prepare(connection, insert_sql, strlen(insert_sql), &stmt, NULL); I want inserts within a loop as: while ( not reached end of datafile ) { // Insert into server table sqlite3_bind_int(stmt, 1, id1); sqlite3_bind_double(stmt, 2, latitude); sqlite3_bind_double(stmt, 3, longitude); sqlite3_step(stmt); } The API docs for the function : https:/

问题 I have the following tables that I need to run query against each. userA id name title ---------- ---------- -------- 1 john engineer 1 John engineer 2 mike designer 3 laura manager 4 dave engineer userB id name title ---------- ---------- -------- 1 john engineer 3 laura manager 3 laura manager 3 laura Manager 5 Peter sales 4 Dave engineer and I'm using the following query to to grep the names found in both tables (intersected) and sorted based on the number of occurrences found: select id,

问题 My problem is I am unable to insert values into sqlite3 using autohot key. My code is: MyName := name myTel := telphonenumber $sSQL := "insert into myTable Values ('" %MyName% "', " %myTel% ");" and I also tried with , $sSQL := "insert into myTable Values ( ' " . MyName . " ', " . myTel . ");" But neither of these works. Any suggestion is appreciated.. 回答1: I've not used AHK with SQLite before, but is it just the query you're having issues with? Try this (note the lack of the colon before the

问题 I have trouble when updating the data in android by using ORM Lite because my updated data is not affected in database immediately. After the update process, I query the data from the database but I got the old data that was the same as before I update. So, I solved this problem by refreshing each updated object by using refresh(Object) after the update process, the problem was OK(I can access the latest updated data from data in next query). But I am not sure is it the best way or not? If

问题 I have trouble when updating the data in android by using ORM Lite because my updated data is not affected in database immediately. After the update process, I query the data from the database but I got the old data that was the same as before I update. So, I solved this problem by refreshing each updated object by using refresh(Object) after the update process, the problem was OK(I can access the latest updated data from data in next query). But I am not sure is it the best way or not? If

问题 I have trouble when updating the data in android by using ORM Lite because my updated data is not affected in database immediately. After the update process, I query the data from the database but I got the old data that was the same as before I update. So, I solved this problem by refreshing each updated object by using refresh(Object) after the update process, the problem was OK(I can access the latest updated data from data in next query). But I am not sure is it the best way or not? If

问题 print ('Files in Drive:') !ls drive/AI Files in Drive: database.sqlite Reviews.csv Untitled0.ipynb fine_food_reviews.ipynb Titanic.csv When I run the above code in Google Colab, clearly my sqlite file is present in my drive. But whenever I run some query on this file, it says # using the SQLite Table to read data. con = sqlite3.connect('database.sqlite') #filtering only positive and negative reviews i.e. # not taking into consideration those reviews with Score=3 filtered_data = pd.read_sql

问题 I used the following command SELECT json_extract(data,'$.address') FROM data; and output as CSV file. Output in CSV file is enter image description here Field (column) in CSV file is saved as 2 lines for 1 field (column). Eg- "71 CHOA CHU KANG LOOP NORTHVALE" How could I save field(column) as 1 line ? That is I don't want to include new line character in filed(column). Eg- "71 CHOA CHU KANG LOOP NORTHVALE" Thanks. 回答1: Just replace the new line character: select replace(json_extract(data,'$