PHP - Using PDO with IN clause array

PHP - Using PDO with IN clause array

I'm using PDO to execute a statement with an IN clause that uses an array for it's values:$in_array = array(1, 2, 3);$in_values = implode(',', $in_array);$my_result = $wbdb->prepare("SELECT * FROM my_table WHERE my_value IN (".$in_values.")

Simple way to transpose columns and rows in Sql?

Simple way to transpose columns and rows in Sql?

How do I simply switch columns with rows in SQL?Is there any simple command to transpose?ie turn this result: Paul | John | Tim | EricRed 1 5 1 3Green 8 4 3 5Blue 2 2 9

What is the best way to implement “remember me” for a website? [closed]

What is the best way to implement “remember me” for a website? [closed]

I want my website to have a checkbox that users can click so that they will not have to log in each time they visit my website. I know I will need to store a cookie on their computer to implement this, but what should be contained in that c

Insert into … values ( SELECT … FROM … )

Insert into … values ( SELECT … FROM … )

I am trying to INSERT INTO a table using the input from another table. Although this is entirely feasible for many database engines, I always seem to struggle to remember the correct syntax for the SQL engine of the day (MySQL, Oracle, SQL

What is a segmentation fault?

What is a segmentation fault?

What is a segmentation fault? Is it different in C and C++? How are segmentation faults and dangling pointers related? 1:Segmentation fault is a specific kind of error caused by accessing memory that “does not belong to you.” It’s a help

How do I parse XML in Python?

How do I parse XML in Python?

I have many rows in a database that contains xml and I'm trying to write a Python script that will go through those rows and count how many instances of a particular node attribute show up. For instance, my tree looks like:

Join vs. sub-query

Join vs. sub-query

I am an old-school MySQL user and have always preferred JOIN over sub-query. But nowadays everyone uses sub-query and I hate it, I don't know why. I lack the theoretical knowledge to judge for myself if there is any difference.Is a sub-qu

How to center an element horizontally and vertically?

How to center an element horizontally and vertically?

I am trying to center my tabs content vertically but when I add the css style display:inline-flex, horizontal text-align disappears.How can I make both text alignments x and y for each of my tabs?* { box-sizing:border-box; }#leftFrame { ba

Retrieving the last record in each group - MySQL

Retrieving the last record in each group - MySQL

There is a table messages that contains data as shown below:Id Name Other_Columns-------------------------1 A A_data_12 A A_data_23 A A_data_34 B B_data_15 B B_data_26 C C_data_1If I

What is the purpose of the var keyword and when should I use it (or omit it)?

What is the purpose of the var keyword and when should I use it (or omit it)?

NOTE: This question was asked from the viewpoint of ECMAScript version 3 or 5. The answers might become outdated with the introduction of new features in the release of ECMAScript 6.What exactly is the function of the var keyword in JavaScr

PHP Script to populate MySQL tables

PHP Script to populate MySQL tables

Is anyone aware of a script/class (preferably in PHP) that would parse a given MySQL table's structure and then fill it with x number of rows of random test data based on the field types? I have never seen or heard of something like this an

Saving in-memory H2 database to disk

Saving in-memory H2 database to disk

How can I save/load full embedded h2 in-memory database to some file or directory in binary mode for faster loading.I want to use this for caching data so I don't have to run all the lines of create table/insert clauses every time. 1:Ins

SQL Server 2008 - HashBytes computed column

SQL Server 2008 - HashBytes computed column

I'm using SQL Server 2008.I have a NVARCHAR(MAX) column called Title and i want to add an unique index for it.Because the column is bigger than 900bytes , I decided to create a HashBytes computed column (based on recommendation on StackOve

Using SQLite in a Python program

Using SQLite in a Python program

I have created a Python module that creates and populates several SQLite tables. Now, I want to use it in a program but I don't really know how to call it properly. All the tutorials I've found are essentially "inline", i.e. they walk throu

Add a custom permission to a User

Add a custom permission to a User

I'd like to be able to give some existing Users a custom permission which I will require for accessing a view.I think I need to add the new permission to the Postgres table auth_permission, but I suspect there is a higher-level way to do th

What is a LEFT JOIN in PostgreSQL

What is a LEFT JOIN in PostgreSQL

I've seen a query using a LEFT JOIN as opposed to an INNER or LEFT OUTER.What is a LEFT JOIN exactly? 1:Where an inner join returns only entries that match in both tables, a left join takes all the entries from first table and any that m

Finding the hash value of a row in postgresql

Finding the hash value of a row in postgresql

Is there a way to get the hash code of a row in postgresql? I need to export some data only if there is some changes in the data after the last export, the last exported data rows can be stored in a table, the when the again I need to expo

Renaming multiple columns in one statement with PostgreSQL

Renaming multiple columns in one statement with PostgreSQL

Is it possible to rename multiple columns in a single statement, something along the lines of:ALTER TABLE Users RENAME COLUMN userName TO user_name, RENAME COLUMN realName TO real_name; 1:No.While other actions can be combined, th

Entity framework Include command - Left or inner join?

Entity framework Include command - Left or inner join?

As I was investigating the difference between Include and Join I found that : If the DB does not include a Foreign Keys -it has no navigation props so it's better to use JoinIf It does have a navigation props - then use Include. ( it also

Why Object#hashCode() returns int instead of long

Why Object#hashCode() returns int instead of long

why not:public native long hashCode();instead of: public native int hashCode();for higher chance of achieving unique hash codes? 1:Because the maximum length of an array is Integer.MAX_VALUE. Since the prime use of hashCode() is to deter

How do you join tables from two different SQL Server instances in one SQL query [duplicate]

How do you join tables from two different SQL Server instances in one SQL query [duplicate]

Possible Duplicate: Selecting data from two different servers in SQL Server How can I join two tables, which are located two different SQL Server instances, in one query? 1:The best way I can think of to accomplish this is via sp_addli

Hiding table data using

Hiding table data using

So, I've hidden whole tables like this, which works fine:Test Table123456789123456789123456789But I want to hide just a group of rows like this:Test Table123456789123456789123456789But that doesn't work. Any hints? 1:Just apply the styl

Maximum transaction size in PostgreSQL

Maximum transaction size in PostgreSQL

I have a utility in my application where i need to perform bulk load of INSERT, UPDATE & DELETE operations. I am trying to create transaction around this so that once this system is invoke and the data is fed to it, it is ensured that it is

Where does mysql store data?

Where does mysql store data?

Where does mysql store data? I found out (by using mysql>SELECT @@datadir ) that it's in var/lib/mysql - but that can't be it. I have a quite big database (4 GB) called 'bot', but all the files in the 'bot' subdirectory (var/lib/mysql/bot)

How to implement real time updates in ASP.NET

How to implement real time updates in ASP.NET

I have seen several websites that show you a real time update of what's going on in the database. An example could beA stock ticker website that shows stock prices in real timeShowing data like "What other users are searching for currently.