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SQL Query to Fetch Two Records Per Each ID

By : Thanh Huỳnh
Date : September 15 2020, 11:00 AM
Hope that helps lets suppose i have this table
code :
WITH cte AS (SELECT id, 
             FROM test)
SELECT id, class
FROM cte 
WHERE rn <= 2

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DB2 Query for fetching records from first query, if first query fails, then fetch from 2nd query

By : yuanye3486
Date : March 29 2020, 07:55 AM
this one helps. This is pretty straightforward if you formulate your requirements using logical predicates:
code :
  emp_id, emp_name 
  not exists ( select 1 from empInfo where addr_code=3 ))

Sql query to fetch only few records from 1 column based on Condition and show/display it separately using Select query

By : Jenni
Date : March 29 2020, 07:55 AM
I wish this helpful for you EDITED: , Below query works fine as per my requirement:
code :
 Select * FROM
 SELECT RequestID, Action, UserName as SubmitterName , CreatedDate AS  SubmitterDateTime
 FROM [tbl_WorkflowHistory]
 Where Action = 'Submit') as A


 (SELECT RequestID, Action, UserName as UpdateName , CreatedDate AS  UpdateDateTime
 FROM [tbl_WorkflowHistory]
 Where Action = 'Update') as B 

 ON A.RequestID=B.RequestID

Oracle query to fetch the count of distinct records based on another query's output

By : Michael Rowing
Date : March 29 2020, 07:55 AM
Any of those help I have a Oracle table (FILE_RECS) which has data in the following format: , You were almost there. Just group by the extracted file_name.
code :
SELECT substr(file_name,instr(file_name,'/',-1)+1,length(file_name)-instr(file_name,'/',-1)) AS FILE_NAME
,COUNT(*) as number_of_records
GROUP BY substr(S,instr(file_name,'/',-1)+1,length(file_name)-instr(file_name,'/',-1))

I want to to fetch 100000 records by SQL query using MySql Xampp and save in an array but it doesn't fetch even 16000 an

By : Guy Benhaim
Date : March 29 2020, 07:55 AM
I hope this helps you . Not sure what is your exact requirement of this code.But your query efficiency seems very low. Your running too many queries that fetch only one row per query.
code :
    select id from shipment Limit 1 OFFSET 0
    select id from shipment Limit 1 OFFSET 1
    select id from shipment Limit 1 OFFSET 2
    select id from shipment Limit 1 OFFSET 3
    select id from shipment Limit 1 OFFSET 4
    select id from shipment Limit 1 OFFSET 5
//$link=  mysqli_connect("localhost","root","","example");
//if (mysqli_connect_error()) {
//    echo "error";
for( $J=0; $J<=3; $J++) {
    $count = $count + 10;
    for($i=1;$i<=$count;$i++) {
         $query="select id from shipment Limit 1 OFFSET " . $offset_var;
         //$result=  mysqli_query($link, $query);
         //while ($row = mysqli_fetch_assoc($result)) {
         //    $rows[]= $row;
         echo $query."\n";
//echo "<pre>";print_r($rows);echo "</pre>";
$link=  mysqli_connect("localhost","root","","example");
if (mysqli_connect_error()) {
    echo "error";

for($i=0; $i<=$count; $i++) {
   $offset_var = $i * $page_size;
   $query = "select id from shipment Limit ".$page_size." OFFSET ".$offset_var;
   $result=  mysqli_query($link, $query);
     while ($row = mysqli_fetch_assoc($result)) {
       $rows[]= $row;
echo "<pre>";print_r($rows);echo "</pre>";

bookshelf.js – how to fetch all records with empty query or no query at all?

By : user2546022
Date : March 29 2020, 07:55 AM
around this issue Is it possible to fetch all records of a table in bookshelf without a query? , I suppose model.fetchAll is the thing you are looking for.
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