I have the following code:
sql.eachRow(sqlQuery, ((pageNumber-1)*pageSize)+1, pageSize) { row ->
List<String> nextRow = new ArrayList<String>();
nextRow.add("$row.EVENT_TMSTP");
...
but what I get for the timestamp is:
oracle.sql.TIMESTAMP#1d44e01
instead of:
12-SEP-13 10.55.00.392000000 AM
I've tried various ways to get the timestamp formatted, but none work. Can anyone help?
According to the documentation, you should just be able to call:
nextRow.add("${row.EVENT_TMSTP.stringValue()}");
Related
I am trying to write a configurable sql query executor using Slick. User provides a prepared statement with ? and at run time the exact query is formed by replacing ? with values.
Generally this is how one would run a plain sql query using slick.
val query = sql"#$queryString".as[(String,Int)]
In my case i would not know the result type so i want to get back a generic result type. Maybe a List of Tuples with each tuple representing a row of result SET.
Any ideas on how this would be done?
I found a solution from one of the scala git issues. Here it is
ResultMap extends GetResult[Map[String, Any]] {
def apply(pr: PositionedResult) = {
val resultSet = pr.rs
val metaData = resultSet.getMetaData();
(1 to pr.numColumns).map { i =>
metaData.getColumnName(i) -> resultSet.getObject(i)
}.toMap
}
and then we can simply do val query = sql"#$queryString".as(ResultMap)
Hope it helps!!
I am struggling a bit trying to generate some JSON from a query I execute. All of the groovy JsonBuilder examples I've looked at only seem to deal with statically defining a dataset.
code:
def db = new Sql(datasource)
def builder = new JsonBuilder()
db.eachRow('SELECT t.day, t.start FROM mytable') { row ->
builder.days {
day(
date row.day
)
}
}
println builder.toString()
I had it at 1 point where it was printing only the last value in the resultset out.
Currently I am receiving the following error:
unexpected token: $ # line 46, column 18.
date row.day
I'm still a bit of a novice at groovy, any help greatly appreciated.
I generally prefer to present JsonBuilder with a complete object rather than use the DSL, so my solution would look something like this:
def map = [days:[]]
def db = new Sql(dataSource)
db.eachRow('SELECT t.day, t.start FROM mytable') { row ->
map.days << [day : [date: row.day]]
}
println new JsonBuilder(map).toString()
If you have a large number of results, this approach has the advantage of not forcing you to compile a huge list of GroovyRowResult objects, only a huge list of much smaller LinkedHashMap objects.
The builder there does not opening a list, add items, then close it. you would have to provide it in a single go. E.g. collect all rows as maps:
def builder = new groovy.json.JsonBuilder()
def dbresult = [1,2,3]
builder {
days dbresult.collect{
[day: [date: it]]
}
}
println builder
Use db.rows to get the list. You might have to try, what is happening, if you just send in the result. Maybe needs a cast to a Map or you have to do the mapping yourself.
If your rowcount is very high, you might be better off some other library, that don't need you to manifest the list beforehand.
Here is an example of what I am trying to do:
def famlist = selection.getUnique('Family_code')
... Where “””...
and testedWaferPass.family_code in $famlist
“””...
famlist is a list of objects
‘selection’ will change every run, so the list is always changing.
I want to return only columns from my SQL search where the row is found in the list that I have created.
I realize it is supposed to look like: in ('foo','bar')
But no matter what I do, my list will not get like that. So I have to turn my list into a string?
('\${famlist.join("', '")}')
Ive tried the above, idk. Wasn’t working for me. Just thought I would throw that in there. Would love some suggestions. Thanks.
I am willing to bet there is a Groovier way to implement this than shown below - but this works. Here's the important part of my sample script. nameList original contains the string names. Need to quote each entry in the list, then string the [ and ] from the toString result. I tried passing as prepared statement but for that you need to dynamically create the string for the ? for each element in the list. This quick-hack doesn't use a prepared statement.
def nameList = ['Reports', 'Customer', 'Associates']
def nameListString = nameList.collect{"'${it}'"}.toString().substring(1)
nameListString = nameListString.substring(0, nameListString.length()-1)
String stmt = "select * from action_group_i18n where name in ( $nameListString)"
db.eachRow( stmt ) { row ->
println "$row.action_group_id, $row.language, $row.name"
}
Hope this helps!
I simply want to include a row number against the returned results of my query.
I found the following post that describes what I am trying to achieve but gives me an exception
http://vaultofthoughts.net/LINQRowNumberColumn.aspx
"An expression tree may not contain an assignment operator"
In MS SQL I would just use the ROWNUMBER() function, I'm simply looking for the equivalent in LINQ.
Use AsEnumerable() to evaluate the final part of your query on the client, and in that final part add a counter column:
int rowNo = 0;
var results = (from data in db.Data
// Add any processing to be performed server side
select data)
.AsEnumerable()
.Select(d => new { Data = d, Count = ++rowNo });
I'm not sure whether LINQ to SQL supports it (but it propably will), but there's an overload to the Queryable.Select method that accepts an lambda with an indexer. You can write your query as follows:
db.Authors.Select((author, index) => new
{
Lp = index, Name = author.Name
});
UPDATE:
I ran a few tests, but unfortunately LINQ to SQL does not support this overload (both 3.5sp1 and 4.0). It throws a NotSupportedException with the message:
Unsupported overload used for query
operator 'Select'.
LINQ to SQL allows you to map a SQL function. While I've not tested this, I think this construct will work:
public partial class YourDataContext : DatContext
{
[Function(Name = "ROWNUMBER")]
public int RowNumber()
{
throw InvalidOperationException("Not called directly.");
}
}
And write a query as follows:
from author in db.Authors
select new { Lp = db.RowNumber(), Name = author.Name };
How do I retrieve the locale-specific date format string in Flex / ActionScript 3? I am unable to find a method to return the actual format string (that which specifies the date format) based on the current locale. I am asking this question because I was hoping to find a way to convert a String to a Date based on the current SHORT date format for the locale. Java allows one to call:
DateFormat format = DateFormat.getDateInstance(DateFormat.SHORT, locale)
to retrieve an instance of DateFormat that formats according to the SHORT format based on the locale.
Does similar functionality exist in Adobe Flex (ActionScript 3) 3? If not, is there a reliable third party library that exists for this?
I'm just found this package that do the job. Here describe the class DateTimeFormatter:
var formatter:DateTimeFormatter = new DateTimeFormatter(LocaleID.DEFAULT, DateTimeStyle.LONG, DateTimeStyle.SHORT);
var result:String = formatter.format(date);
Just cool.
Extending Gojan's answer:
private function cc(event:FlexEvent):void {
var formatter:DateTimeFormatter = new DateTimeFormatter(LocaleID.DEFAULT, DateTimeStyle.SHORT, DateTimeStyle.NONE);
//now if publishDate is a mx:DateField, the formatString of spark and mx components are slightly different.
//So, we replace all d with D and y with Y
publishDate.formatString=replaceAll(formatter.getDateTimePattern(), ["d", "y"], ["D", "Y"]);
}
private function replaceAll(text:String, searchArray:Array, replArray:Array):String {
for (var i:int=0; i<searchArray.length; i++) {
var s:String=searchArray[i];
var d:String=replArray[i];
text=text.split(s).join(d);
}
return text;
}
Yeah I have to say Java is better with dates - you set the locale and automatically your dates are outputted correctly! I can't seem to find such a facility in Flex.
In order to output your dates correctly for each locale I think you have to do what is written in this article: http://livedocs.adobe.com/flex/3/html/help.html?content=l10n_1.html. Maybe you should do this, and in the same class just make these strings which you've pulled from the locale file available to the rest of your app, then you'll be able to operate on them.
Otherwise perhaps this guy's library will help you? I'm not sure.
http://flexoop.com/2008/12/flex-date-utils-date-and-time-format-part-ii/