One of the cool things about MongoDB is that the ids are generated client side. This means you don’t even have to ask the server what the id was, because you told it what to save in the first place. Using pymongo the return value of an insert will be the object id. Check it … Read more
If don’t want to have to commit each entry to the database, you can add the following line: conn.autocommit = True So your resulting code would be: import psycopg2 try: conn = psycopg2.connect(“dbname=”djangostack” user=”bitnami” host=”localhost” password=’password'”) conn.autocommit = True except: print “Cannot connect to db” cur = conn.cursor() try: cur.execute(“””insert into cnet values (‘r’, ‘s’, … Read more
Because $newDate is an object of type DateTime, not a string. The documentation is explicit: Returns new DateTime object formatted according to the specified format. If you want to convert from a string to DateTime back to string to change the format, call DateTime::format at the end to get a formatted string out of your … Read more
I dont know exactly if this fits the requirement for a “random description”, and it’s not clear if you want to generate the full data: but, for example, this generates 10 records with consecutive ids and random texts: test=# SELECT generate_series(1,10) AS id, md5(random()::text) AS descr; id | descr —-+———————————- 1 | 65c141ee1fdeb269d2e393cb1d3e1c09 2 | … Read more
It’s a bit crude – but for one off jobs, I sometimes use Excel. If you import the CSV file into Excel, you can create a formula which creates an INSERT statement by using string concatenation in the formula. So – if your CSV file has 3 columns that appear in columns A, B, and … Read more
As stated in Date and Time Literals: MySQL recognizes DATE values in these formats: As a string in either ‘YYYY-MM-DD’ or ‘YY-MM-DD’ format. A “relaxed” syntax is permitted: Any punctuation character may be used as the delimiter between date parts. For example, ‘2012-12-31’, ‘2012/12/31’, ‘2012^12^31’, and ‘2012@12@31’ are equivalent. As a string with no delimiters … Read more
vec1[i] = vec2[i] will set the value of vec1[i] to the value of vec2[i]. Nothing is inserted. Your second approach is almost correct. Instead of +i+1 you need just +i v1.insert(v1.begin()+i, v2[i])
Cpt.Ohlund gave me the right hint. I solved it, now, partly with using EditText.getSelectionStart(), but I realized that you can also replace the selected text with the same expression and you don’t need String.subString() for that. int start = Math.max(myEditText.getSelectionStart(), 0); int end = Math.max(myEditText.getSelectionEnd(), 0); myEditText.getText().replace(Math.min(start, end), Math.max(start, end), textToInsert, 0, textToInsert.length()); This works … Read more
If your requirement is to find a particular z_id and the x_ids and y_ids linked to it (as distinct from quickly selecting a range of z_ids) you could look into a non-indexed hash-table nested-relational db that would allow you to instantly find your way to a particular z_id in order to get its y_ids and … Read more
Swift 3 Use the native Swift approach: var welcome = “hello” welcome.insert(“!”, at: welcome.endIndex) // prints hello! welcome.insert(“!”, at: welcome.startIndex) // prints !hello welcome.insert(“!”, at: welcome.index(before: welcome.endIndex)) // prints hell!o welcome.insert(“!”, at: welcome.index(after: welcome.startIndex)) // prints h!ello welcome.insert(“!”, at: welcome.index(welcome.startIndex, offsetBy: 3)) // prints hel!lo If you are interested in learning more about Strings and … Read more