execute

问题 Is there a way to prevent a code-block or a function within a code from running more than once even if I re-execute (or reload) the PHP file? I mean, can I restrict someone from executing a php script more than once? I can't seem to find the way to do this. 回答1: I have an app that does that. What we did was create a table in the db called version, and stored a version number in there. When the script is ran, it compared the version number in the database with that in the php script. And

问题 On windows I could cut a video with below code with ffmpeg.exe Can't use ffmpeg in android. I used gradle to grab ffmpeg in my app. dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) compile 'com.github.hiteshsondhi88.libffmpeg:FFmpegAndroid:0.2.5' } I have these lines in my method VideoIn = getInternalDirectoryPath() + "/Download/Ab.mp4"; VideoOut = getInternalDirectoryPath() + "/Download/Ab1.mp4"; try { ffmpeg.execute("ffmpeg -i " + VideoIn + " -ss 00:00:03 -c:v libx264 -crf

问题 I wrote a function, StoogeFunk , that uses FOREACH against systables and syscolumns , to concatenate in a string the list of fields in a table (the name of which is passed as a function parameter). I surround with CAST/VARCHAR(30) the date fields, for reasons I dare not explain. So, I come to a point where I have in a string, SelectString , the equivalent of: SELECT Name, CAST(DOB AS VARCHAR(30)) AS DOB, ShoeSize FROM Stooges My function simply returns that LVARCHAR string (and it is a long

问题 Using MySQL, I am trying to create a stored proc to retrieve the maximum value of a varchar column in any given table. I would want to increment the value of the column by 1 and then use it to store the other fields. I do not want the column to be int and auto increment. the stored proc i have for now is DELIMITER $$ use gounicartdb$$ DROP PROCEDURE IF EXISTS sp_getUpdatedIDFromTable$$ CREATE PROCEDURE sp_getUpdatedIDFromTable( IN tableName varchar(50), IN columnName varchar(50), IN

问题 I am using a PDO object in PHP to run MYSQL queries, and I seem to be having a problem with using the IN() clause with PDO::Prepare(). User Input: tags separated by a comma ex) basketball,football I code the following: $query = "SELECT s.item_id, s.item_type, s.title FROM search_all s WHERE EXISTS ( SELECT t.item_id FROM tags t WHERE t.item_id = s.item_id AND t.item_type = s.item_type AND t.tag IN (:tags) )"; $mysql_vars[':tags'] = implode("','",explode(',',$tags)); $stmt = $connection-

问题 Good evening, I have a program that I work with, that has an onboard lua compiler to allow for custom written actions. Since the tool itself is very limited, especially if it goes for complex reactions over networks, I want to use Powershell over lua. Sadly there isn't much to find about that (at least I didn't), and things like os.execute() or io.popen() use the standard command line from windows. Does someone know a library or another way to use Powershell with lua. What I already tried: I

问题 I have the following table create table LIST_PIPE_TABLE ( ID INT, ITEM VARCHAR(4000), IS_FOLDER VARCHAR(10) ) with 3 rows of data insert into LIST_PIPE_TABLE values(1,'Victorias Secret','true') insert into LIST_PIPE_TABLE values(2,'Porsche','true') insert into LIST_PIPE_TABLE values(3,'Babbolat','false') And a stored procedure that should return resultset CREATE or alter PROCEDURE LIST_PIPE RETURNS ( col1 varchar(4000), col2 varchar(10) ) AS begin FOR SELECT ITEM AS ITEM ,IS_FOLDER AS IS

问题 As the title says ... I have tried to use the following code to execute a PHP script when user clicks a button in my Java Swing application : URL url = new URL( "http://www.mywebsite.com/my_script.php" ); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.connect(); But nothing happens ... Is there something wrong ? 回答1: I think you're missing the next step which is something like: InputStream is = conn.getInputStream(); HttpURLConnection basically only opens the socket

问题 I'm having trouble executing/calling an Oracle procedure in R via ROracle. I've tried many different ways of calling the procedure and I keep getting the same errors. I've had no problem doing SELECT queries but calling a procedure is proving difficult. I've used both oracleProc and dbSendQuery functions, but to no avail. Neither of them work. Roracle documentation is pathetic for examples of calling procedures. Let's say the Oracle procedure is called MYPROC in MYSCHEMA. The procedure is

问题 i need to execute a .lnk file in java (lnk file that points at an exe file). how can i do? in vb .net i do Process.Start(path) and it works thx you for help. 回答1: Use a ProcessBuilder: ProcessBuilder pb = new ProcessBuilder("cmd", "/c", "C:\\temp\\file.lnk"); Process process = pb.start(); Call process.getInputStream() and process.getErrorStream() to read the output and error output of the process. 回答2: On Windows, you could use rundll : Runtime.getRuntime().exec("rundll32 SHELL32.DLL