Posts in 2021
-
Most votes on sqlite questions 2
May 01, 2021 in FAQ
Most votes on sqlite questions 2. #11 How to get a list of column names on Sqlite3 database? #12 Insert new column into table in sqlite? #13 What are the performance characteristics of sqlite with very large database files? #14 Java and SQLite #15 How to get Top 5 records in SqLite? #16 How to use an existing database with an Android application #17 How to set Sqlite3 to be case insensitive when string comparing? #18 Store boolean value in SQLite #19 Core Data vs SQLite 3 #20 When does SQLiteOpenHelper onCreate() / onUpgrade() run?
Read all the top votes questions and answers in a single page. #11: How to get a list of column names on Sqlite3 database? (Score: 435) Created: 2009-06-03 Last updated: 2020-01-25 Tags: sqlite I want to migrate my iPhone app to a new database …
-
Most votes on sqlite questions 10
May 01, 2021 in FAQ
Most votes on sqlite questions 10. #91 Importing a CSV file into a sqlite3 database table using Python #92 SQLite string contains other string query #93 How do DATETIME values work in SQLite? #94 Android Room Persistence Library: Upsert #95 What is the syntax for "not equal" in SQLite? #96 Change SQLite database mode to read-write #97 Is there an auto increment in sqlite? #98 Difference between 2 dates in SQLite #99 Light weight alternative to Hibernate? #100 How to import load a .sql or .csv file into SQLite?
Read all the top votes questions and answers in a single page. #91: Importing a CSV file into a sqlite3 database table using Python (Score: 119) Created: 2010-05-22 Last updated: 2014-10-19 Tags: python, database, csv, sqlite I have a CSV file and I …
-
Most votes on sqlite questions 1
May 01, 2021 in FAQ
Most votes on sqlite questions 1. #1 Improve INSERT-per-second performance of SQLite #2 Select first row in each GROUP BY group? #3 How to list the tables in a SQLite database file that was opened with ATTACH? #4 How do I check in SQLite whether a table exists? #5 What are the best practices for SQLite on Android? #6 Sqlite primary key on multiple columns #7 Is it possible to insert multiple rows at a time in an SQLite database? #8 SQLite - UPSERT not INSERT or REPLACE #9 What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4.0 project? #10 Is there an SQLite equivalent to MySQL's DESCRIBE [table]?
Read all the top votes questions and answers in a single page. #1: Improve INSERT-per-second performance of SQLite (Score: 3112) Created: 2009-11-10 Last updated: 2021-01-30 Tags: c, performance, sqlite, optimization Optimizing SQLite is tricky. …
-
Most votes on sorting questions 9
May 01, 2021 in FAQ
Most votes on sorting questions 9. #81 Sorting a Python list by two fields #82 How can I sort a List alphabetically? #83 How to compare software version number using js? (only number) #84 Why does "return list.sort()" return None, not the list? #85 Java Set retain order? #86 from list of integers, get number closest to a given value #87 Sorting a tab delimited file #88 Are there any worse sorting algorithms than Bogosort (a.k.a Monkey Sort)? #89 jQuery table sort #90 How to sort by two fields in Java?
Read all the top votes questions and answers in a single page. #81: Sorting a Python list by two fields (Score: 198) Created: 2011-03-06 Last updated: 2018-05-10 Tags: python, sorting I have the following list created from a sorted csv list1 = …
-
Most votes on sorting questions 8
May 01, 2021 in FAQ
Most votes on sorting questions 8. #71 Is there a way to 'uniq' by column? #72 pandas groupby sort within groups #73 Fastest way to sort 10 numbers? (numbers are 32 bit) #74 Finding median of list in Python #75 How to sort an array of objects with jquery or javascript #76 In-Place Radix Sort #77 Javascript : natural sort of alphanumerical strings #78 How do I Sort a Multidimensional Array in PHP #79 Throwing the fattest people off of an overloaded airplane. #80 How to sort an array of objects by multiple fields?
Read all the top votes questions and answers in a single page. #71: Is there a way to 'uniq' by column? (Score: 213) Created: 2009-12-16 Last updated: 2014-11-17 Tags: linux, shell, sorting, uniq I have a .csv file like this: …
-
Most votes on sorting questions 7
May 01, 2021 in FAQ
Most votes on sorting questions 7. #61 How to sort in-place using the merge sort algorithm? #62 How to perform case-insensitive sorting in JavaScript? #63 Best way to list files in Java, sorted by Date Modified? #64 How may I sort a list alphabetically using jQuery? #65 C++ sorting and keeping track of indexes #66 How to get indices of a sorted array in Python #67 What is the difference between
sorted(list)vslist.sort()? #68 How to sort an ArrayList in Java #69 How to sort with lambda in Python #70 In Python, how do I iterate over a dictionary in sorted key order?Read all the top votes questions and answers in a single page. #61: How to sort in-place using the merge sort algorithm? (Score: 260) Created: 2010-04-03 Last updated: 2012-10-20 Tags: arrays, algorithm, sorting, mergesort, in-place I know the …
-
Most votes on sorting questions 6
May 01, 2021 in FAQ
Most votes on sorting questions 6. #51 How to convert a Collection to List? #52 How can I sort arrays and data in PHP? #53 How to sort an array in descending order in Ruby #54 Java Array Sort descending? #55 Write a program to find 100 largest numbers out of an array of 1 billion numbers #56 Is there an upside down caret character? #57 Sorting a vector of custom objects #58 Sort hash by key, return hash in Ruby #59 How to sort a list of lists by a specific index of the inner list? #60 Javascript Array.sort implementation?
Read all the top votes questions and answers in a single page. #51: How to convert a Collection to List? (Score: 313) Created: 2009-02-24 Last updated: 2017-10-20 Tags: java, list, sorting, collections, apache-commons-collection I am using …
-
Most votes on sorting questions 5
May 01, 2021 in FAQ
Most votes on sorting questions 5. #41 how to sort pandas dataframe from one column #42 How does one reorder columns in a data frame? #43 Pagination in a REST web application #44 How to implement classic sorting algorithms in modern C++? #45 How to sort a dataFrame in python pandas by two or more columns? #46 Sorting a vector in descending order #47 Is there a built in function for string natural sort? #48 SQL how to make null values come last when sorting ascending #49 How can you sort an array without mutating the original array? #50 What's the most efficient way to erase duplicates and sort a vector?
Read all the top votes questions and answers in a single page. #41: how to sort pandas dataframe from one column (Score: 345) Created: 2016-06-13 Last updated: 2021-02-05 Tags: python, pandas, dataframe, sorting, time I have a data frame like this: …
-
Most votes on sorting questions 4
May 01, 2021 in FAQ
Most votes on sorting questions 4. #31 Sorting arrays in NumPy by column #32 How to sort an ArrayList? #33 orderBy multiple fields in Angular #34 Why is quicksort better than mergesort? #35 Preserving order with LINQ #36 How to sort a NSArray alphabetically? #37 Python list sort in descending order #38 django order_by query set, ascending and descending #39 What is stability in sorting algorithms and why is it important? #40 How to keep keys/values in same order as declared?
Read all the top votes questions and answers in a single page. #31: Sorting arrays in NumPy by column (Score: 392) Created: 2010-05-13 Last updated: 2018-04-20 Tags: python, arrays, sorting, numpy, scipy How can I sort an array in NumPy by the nth …
-
Most votes on sorting questions 3
May 01, 2021 in FAQ
Most votes on sorting questions 3. #21 Sort array of objects by object fields #22 Swift how to sort array of custom objects by property value #23 Why is there no SortedList in Java? #24 Sort a list by multiple attributes? #25 How to sort an array of associative arrays by value of a given key in PHP? #26 List<T> OrderBy Alphabetical Order #27 Sorting list based on values from another list #28 How can I convert the "arguments" object to an array in JavaScript? #29 How to sort a list of strings? #30 Fastest sort of fixed length 6 int array
Read all the top votes questions and answers in a single page. #21: Sort array of objects by object fields (Score: 563) Created: 2010-11-26 Last updated: 2014-09-24 Tags: php, arrays, sorting, object How can I sort this array of objects by one of its …