ladder2 | A PHP database migration tool for MySQL | Database library
kandi X-RAY | ladder2 Summary
kandi X-RAY | ladder2 Summary
Ladder started life many years ago as an extremely simple database migration system. It's grown over time to include a host of features, and had a ground-up rewrite to keep it modern (and remove use of the mysql extension). It's written for PHP >= 7.2, and supports the popular MySQL database server via PDO.
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Top functions reviewed by kandi - BETA
- Find all the migrations .
- Get the SQL definition .
- Alters the table .
- Roll back a migration .
- Create migration template file .
- Get the create sql statement .
- Execute prepared statement .
- Join paths together .
- Apply migrations .
- Execute a SQL query .
ladder2 Key Features
ladder2 Examples and Code Snippets
Community Discussions
Trending Discussions on ladder2
QUESTION
I’d like to use an if statement to create a new column from a vector. However, the result only inputs the first value from the vector all the way down the column. Is there a way to get it to put the vector in? I’ve tried c() and as.character(). Any help much appreciated!
...ANSWER
Answered 2020-Jun-26 at 05:31ifelse
outputs vector of same length as the variable you are testing which is of length 1 here (nrow(data) == 23
) so it output only the 1st variable which is recycled throughout the column.
Use if
/else
instead :
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install ladder2
PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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