The Question : 246 people think this question is useful I have a data frame named “mydata” that looks like this this: I’d like to delete row 2,4,6. For example, like this: The Question Comments : Also, you might want to become familiar with some common terminology for working with data. This is usually referred
The Question : 423 people think this question is useful I’ve got a very large MySQL table with about 150,000 rows of data. Currently, when I try and run the code runs fine as the ID field is the primary index. However, for a recent development in the project, I have to search the database
问题内容: I get the following compiler error when I try to build an insert statement: Value of type Table has no member adbc This is the code I am using: let ev = Table("events") do { let rowid = try db.run(ev.insert(ev.adbc <- tadbc, ev.year <- tyear, ev.month <- tmonth, ev.day <- tday, ev.ampm <- tampm,