truncate

I have the following data: temp<-c("AIR BAGS:FRONTAL" ,"SERVICE BRAKES HYDRAULIC:ANTILOCK", "PARKING BRAKE:CONVENTIONAL", "SEATS:FRONT ASSEMBLY:POWER ADJUST", "POWER TRAIN:AUTOMATIC TRANSMISSION", "SUSPENSION", "ENGINE AND ENGINE COOLING:ENGINE", "SERVICE BRAKES HYDRAULIC:ANTILOCK", "SUSPENSION:FRONT", "ENGINE AND ENGINE COOLING:ENGINE", "VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES") I would like to create a new vector that retains only the text before the first ":" in the cases where a ":" is present, and the whole word when ":" is not present. I have tried to use: temp=data.frame(matrix

I want to truncate a float and a double value in java. Following are my requirements: 1. if i have 12.49688f, it should be printed as 12.49 without rounding off 2. if it is 12.456 in double, it should be printed as 12.45 without rounding off 3. In any case if the value is like 12.0, it should be printed as 12 only. condition 3 is to be always kept in mind.It should be concurrent with truncating logic. try this out- DecimalFormat df = new DecimalFormat("##.##"); df.setRoundingMode(RoundingMode.DOWN); System.out.println(df.format(12.49688f)); System.out.println(df.format(12.456)); System.out

Here is the updated question: the current query is doing something like: $sql1 = "TRUNCATE TABLE fubar"; $sql2 = "CREATE TEMPORARY TABLE IF NOT EXISTS fubar SELECT id, name FROM barfu"; The first time the method containing this is run, it generates an error message on the truncate since the table doesn't exist yet. Is my only option to do the CREATE TABLE , run the TRUNCATE TABLE , and then fill the table? (3 separate queries) original question was: I've been having a hard time trying to figure out if the following is possible in MySql without having to write block sql: CREATE TABLE fubar IF

Given a Unicode string and these requirements: The string be encoded into some byte-sequence format (e.g. UTF-8 or JSON unicode escape) The encoded string has a maximum length For example, the iPhone push service requires JSON encoding with a maximum total packet size of 256 bytes. What is the best way to truncate the string so that it re-encodes to valid Unicode and that it displays reasonably correctly? (Human language comprehension is not necessary—the truncated version can look odd e.g. for an orphaned combining character or a Thai vowel, just as long as the software doesn't crash when

This question already has an answer here: How do I specify a dynamic position for the start of substring? 4 answers I have a list of strings in R which looks like: WDN.TO WDR.N WDS.AX WEC.AX WEC.N WED.TO I want to get all the postfix of the strings starting from the character ".", the result should look like: .TO .N .AX .AX .N .TO Anyone have any ideas? Joshua's solution works fine. I'd use sub instead of gsub though. gsub is for substituting multiple occurrences of a pattern in a string - sub is for one occurrence. The pattern can be simplified a bit too: > x <- c("WDN.TO","WDR.N","WDS.AX",

What is the recommended way to truncate a table using hibernate/hql? I've tried this: Query query = session.createQuery("truncate table MyTable"); query.executeUpdate(); But it didn't work (truncate doesn't seem do be documented anywhere in hql...) Tom I guess an horrible way of doing it would be deleting all. public int hqlTruncate(String myTable){ String hql = String.format("delete from %s",myTable); Query query = session.createQuery(hql); return query.executeUpdate(); } You can use session.createSQLQuery() instead: session.createSQLQuery("truncate table MyTable").executeUpdate(); Needless