Is there any way to search both string and float attribute with OR condition? I've tried this:
$s->SetServer('localhost', 3312);
$s->SetMatchMode(SPH_MATCH_EXTENDED2);
$s->SetArrayResult(false);
$s->SetLimits ( ($page-1)*$onsite, $onsite );
$s->SetSortMode(SPH_SORT_EXTENDED, '#id DESC');
$s->Query('#city "London" | floatrange=lat,51.0,51.2');
Related
I have following query which select from employee table where name is "max" and ID not in 123 and 444.
Not in IDs can grow in future. But I am receiving error as
Error
( 8023): [ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: DatabaseException(near "?": syntax error (code 1 SQLITE_ERROR): , while compiling:
Query
List<String> a = [];
a.add("123");
a.add("444");
var table = await mydb.rawQuery(
"SELECT value from employee WHERE employeename = ? AND id NOT IN ? ORDER BY timestamp DESC",
["max", a]);
If the LIST is unpredictable, one way is that you can use JOIN to create your select statement with required value of NOT IN. Below is one sample.
void main() {
List<String> a = [];
a.add("123");
a.add("444");
var select =
'SELECT value from employee WHERE employeename = ? AND id NOT IN (\'' +
(a.join('\',\'')).toString() +
'\') ORDER BY timestamp DESC';
var table = await mydb.rawQuery(select, ["max"]);
}
If you print the variable select you will get
SELECT value from employee WHERE employeename = ? AND id NOT IN ('123','444')
ORDER BY timestamp DESC.
Then you can pass the above statement to rawquery and get your result.
P.S:Use your single quote and double quote accordingly.
I'd go for #arun-palanisamy 's solution, see his comment. Props go to him. I just tried the following -- with Groovy/Postgres, but the error seems to be the same, so you might want to give it a try:
String[] a = ['123', '444']
// your code, throws 'ERROR: syntax error at or near "$2"':
// def table = sql.execute("SELECT value from employee WHERE employeename = ? AND id NOT IN ? ORDER BY timestamp DESC", ["max", a])
// code of arun-palanisamy, compiles:
def table = sql.execute("SELECT value from employee WHERE employeename = ? AND id NOT IN (${a.join(', ')}) ORDER BY timestamp DESC", ["max", a])
Side notes:
You might want to try a different type for a, such as Array in my code, or even a HashMap.
There are examples (like here) where the number of ? are generated dynamically.
Update: Go for this answer, we posted simultaneously
I'm to insert a record with embedded field in OrientDB and then to query for that record using filter:
insert into MyClass set embeddedField = {'#type': 'd', 'id': 1}
works well, and
select from MyClass
returns the record I've added. But when I add where with filter for embeddedField, I get no results:
select from MyClass where embdeddedField = {'#type': 'd', 'id': 1}
I thought that it could happen because Orient adds #version field into embedded document, so I tried to search with version:
select from MyClass where embdeddedField = {'#type': 'd', '#version': 0, 'id': 1}
But still got no results.
Question: Any idea how to filter embedded field by entire document? Without the need to filter explicitly by each field of embedded document:
select from MyClass
where embdeddedField.id = 1
and embdeddedField.field2 = val2
and embeddedField.field3 = val3
Because for several reasons I would like to pass the entire object as single query parameter:
select from MyClass where embdeddedField = ?
Thats because the provided Hash is transformed to an embedded class.
Perhaps take a look at the ActiveOrientWiki https://github.com/topofocus/active-orient/wiki/Relations
To explain:
Take a class base, there a document with two properties (schemaless)
and add existing documents to it
( 0..9 ).each do | b |
base_record= Base.create label: b, first_list: []
( 0..9 ).each {|c| base_record.first_list << FirstList.create( label: c ) }
end
INFO->CREATE VERTEX base CONTENT {"label":0,"first_list":[]}
INFO->CREATE VERTEX first_list CONTENT {"label":0}
INFO->update #136:0 set first_list = first_list || [#147:0] return after #this
then links are embedded and the record looks like
=> #<Base:0x00000000041a60e0 #metadata={:type=>"d", :class=>"base", :version=>11, :fieldTypes=>"first_list=z", :cluster=>129, :record=>1},
#attributes={:first_list=>["#149:1", "#150:1", "#151:1", "#152:1", "#145:2", "#146:2", "#147:2", "#148:2", "#149:2", "#150:2"], :label=>"1"}>
if you expand the list items, you can query for "#type"
If you add a document without rid, the same thing happens
( 0..9 ).each {|c| base_record.first_list << FirstList.new( label: c ) }
20.04.(12:53:59) INFO->update #130:2 set first_list = first_list || [{ #type: 'd' ,#class: 'first_list' ,label: 0 }] return after #this
INFO->CREATE VERTEX base CONTENT {"label":"c","first_list":[]}
'#130:2'.expand
=> #<Base:0x00000000043927a0 #metadata={:type=>"d", :class=>"base", :version=>11, :fieldTypes=>"first_list=z", :cluster=>130, :record=>2},
#attributes={:first_list=>["#151:12", "#152:12", "#145:13", "#146:13", "#147:13", "#148:13", "#149:13", "#150:13", "#151:13", "#152:13"], :label=>"c"}>
If you omit the class-name, only the scope of the rid's changes
INFO-> update #132:2 set first_list = first_list || { #type: 'd' ,label: 0 } return after #this
=> [#<Base:0x0000000003a26fb8 #metadata={:type=>"d", :class=>"base", :version=>3, :fieldTypes=>"first_list=z", :cluster=>132, :record=>2},
#attributes={:first_list=>["#3:0"], :label=>"d"}>]
In any case, a query for #type failes
I need to execute following query using phalcon framework:
"SELECT id FROM table GROUP BY id HAVING '31' = ALL(array_agg(status))"
How can I execute this query using phalcon?
When I do following:
Model::query()
->columns(['id'])
->groupBy('id')
->having('31 = ALL(array_agg(status))')
->execute();
I get this error message:
Syntax error, unexpected token ALL, near to '(array_agg(status)) ', when parsing: SELECT id FROM [SomeNameSpace\Model] GROUP BY [id] HAVING 31 = ALL(array_agg(status)) (137)
I'm not 100% sure which Postgres functions are supported, but you can try like this:
Model::query()
->columns([
'id',
'ALL(array_agg(status)) AS statusCounter'
])
->groupBy('id')
->having('31 = statusCounter')
->execute();
Notice that I moved the aggregation functions in the select, rather in having clause.
UPDATE: here is an example of very custom query. Most functions used are not supported and it's sometimes cleaner just to write a simple SQL query and bind the desired Model to it:
public static function findNearest($params = null)
{
// A raw SQL statement
$sql = '
SELECT *, 111.045 * DEGREES(ACOS(COS(RADIANS(:lat))
* COS(RADIANS(X(coords)))
* COS(RADIANS(Y(coords)) - RADIANS(:lng))
+ SIN(RADIANS(:lat))
* SIN(RADIANS(X(coords)))))
AS distance_in_km
FROM object_locations
ORDER BY distance_in_km ASC
LIMIT 0,5;
';
// Base model
$model = new ObjectLocations();
// Execute the query
return new \Phalcon\Mvc\Model\Resultset\Simple(
null,
$model,
$model->getReadConnection()->query($sql, $params)
);
}
// How to use:
\Models\ObjectLocations::findNearest([
'lat' => 42.4961756,
'lng' => 27.471543300000008
])
You need to add ALL as dialect extension. Check this topic for example https://forum.phalconphp.com/discussion/16363/where-yearcurrenttimestamp-how-to-do-this
I have created an automatic full-text index on a vertex property.
OrientVertexType entryType = graph().createVertexType("Person");
entryType.createProperty("name", OType.STRING);
entryType.createIndex("Person.name", "FULLTEXT", new String[] { "name" });
Now i would like to programmatically query this full text index. For example to search all persons with a name starting with "Seb".
OIndex<?> nameIndex = graph().createVertexType("Person").getClassIndex("Person.name");
// nameIndex.query("%Seb%");
How can i do this ?
You can use:
nameIndex.get("Seb");
I create an API using Lua for query data from MongoDB.
for q_result in q_out:results() do
test_query = "{'a_id': '"..q_result.a_id.."' , 'b_id':'"..bid.."'}"
local rq = assert(db:query('DBName.table', test_query))
Now its order by descending, I find a way to order by ascending.
I see this link but I don't know how to write a parameter.
Suggested way to do this is this:
client.db:query( 'users' , { query={ firstName='Ezra' },
orderby={ lastName=1, firstName=1 } } )
I don't this your query is going to work. You are creating a string and it needs to be a table. Probably something like this:
local test_query = {query = {a_id = q_result.a_id, b_id = bid}}
test_query.orderby = {a_id=1} -- 1 sort ascending, -1 sort descending.