Convert MySQL to SQlite [closed]
Is it possible to convert from MySQL to SQLite with a free tool on windows?
sqlite
java.lang.ClassNotFoundException: org.sqlite.JDBC error in Sample.java program from xerial
Thanks to user phew for the help/ideas. I missed the obvious command line instructions on Xerial’s site for the Sample program. To get the program to run from the command line, I had to copy the JAR file into the same folder as the .CLASS file. Then run the following command: Inside the quotation marks … Read more
What is difference between SQLite and SQL
Every SQL database uses its own implementation of the language that varies slightly. While basic queries are almost universal, there are notable nuances between MySQL, PostgreSQL, Microsoft SQL Server, Oracle Database, etc. What’s particularly notable about SQLite is that unlike all the others mentioned above, this database software doesn’t come with a daemon that queries … Read more
Error: C2228: left of ” must have class/struct/union
You made an error here: You declared a function called myDBControl taking no arguments and returning a DatabaseControl. Object declarations without any constructor arguments must omit the (): This is related to (but is not precisely) the “most vexing parse“, in that it’s caused by the same language rule that statements are function declarations if … Read more
sqlite3 “foreign key constraint failed”
I’ve set up two tables: After I insert data into A, it looks like this: After I insert data into B, it looks like this: I then execute the following statement: I get the following: “Error: foreign key constraint failed” I then restart sqlite3 and try again but this time I enter this first: it … Read more
How can I add the sqlite3 module to Python?
You don’t need to install sqlite3 module. It is included in the standard library (since Python 2.5).
“Insert if not exists” statement in SQLite
If you have a table called memos that has two columns id and text you should be able to do like this: If a record already contains a row where text is equal to ‘text to insert’ and id is equal to 5, then the insert operation will be ignored. I don’t know if this will work for your particular query, but perhaps … Read more
sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and there are 74 supplied
You need to pass in a sequence, but you forgot the comma to make your parameters a tuple: Without the comma, (img) is just a grouped expression, not a tuple, and thus the img string is treated as the input sequence. If that string is 74 characters long, then Python sees that as 74 separate bind values, each one … Read more
Django – no such table exception
I solved the same problem with these steps : Delete your database (db.sqlite3 in my case) in your project directory Remove everything from __pycache__ folder under your project subdirectory For the application you are trying to fix, go to the folder and clear migrations and __pycache__ directories When you are sure you have cleared all the above files, run: I hope this … Read more
Sqlite3, OperationalError: unable to open database file
Primary diagnosis: SQLite is unable to open that file for some reason. Checking the obvious reasons why, and in approximate order that I recommend checking: Is the program running on the same machine as you’re testing it? Is it running as you (or at least the same user as you’re testing it as)? Is the … Read more