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Questions tagged [lead]

Accesses data from a subsequent row in the same result set without the use of a self-join in SQL Server 2017. LEAD provides access to a row at a given physical offset that follows the current row. Use this analytic function in a SELECT statement to compare values in the current row with values in a following row.

For further reading https://learn.microsoft.com/en-us/sql/t-sql/functions/lead-transact-sql

309 questions
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Lognest date sequence / group sequence

create table test_d as SELECT price, to_date(startdate,'YYYY-MM-DD') startdate FROM ( SELECT 632 as price,'2019-05-01' as startdate FROM DUAL UNION ALL SELECT 649,'2019-05-02' FROM DUAL UNION ALL SELECT 632,'2019-05-03' FROM…
q4za4
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Check previous and next record

I'm trying to compare different costs from different periods. But I dont no how I can compare the single record with the record before and after. What I need is a yes or no in my dataset when the costs from a records is the same as record before and…
miltenburger
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SQL code to get next variable in table with different value

I need to find a way in SQL Server 2014 Management Studios to find the next unique value in a column that shares the value of a different column. So for example below I would want my results to be Column 1 - A Column 2 - 1 Column 3 - 4 As that is…
Chad Collings
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How to use LEAD function with condition?

I am using my query to pull back instances where one customer is buying things on multiple days. I am interested in pulling back only rows where the customer is buying the same item on different days. My query looks like this: FROM ( SELECT…
jdubs
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Cannot Use LEAD in mysql version 8.0.12

I try to lead a column with mysql version 8.0.12 and the code returns an error. Can someone help me ? Here is my sql configuration mysql Ver 8.0.12 for osx10.14 on x86_64 (Homebrew) I have this dataset: member_id date 0 A …
kiki
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MySQL Lead function not working. I have tried but its working as lag function. Kindly help me

I am trying to implement the lead function functionality in select query from yesterday onwards but its not working for me. SELECT inbp_ingangsdatum, previous FROM (SELECT ibp.inbp_ingangsdatum, @prev …
Naren P
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SQL: Count of rows between first and last occurrence - with a twist

I want to find the count of rows between first and last occurrence of a value. However when there are five or more records of a different value between them, stop counting. So if last occurrence is today and first occurrence is yesterday, the result…
Peete
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HTPP POST to Google Forms or Alternative

I have a google form setup that emails me upon a manual submission when somebody fills it out (new lead) and transfers the information to a Google spreadsheet. Easy enough to figure that out. However, now I'm trying to figure out how to send the…
J.R.
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I need to create the sum of next 7 days values of a column in r.The sum should be grouped by another column which has string values

I need to create the sum of next 7 days values of a column in r.The sum should be grouped by another column which has string values Example name value a 2 a 3 a 3 b 4 b 3 b 2 b 1 b 3…
Sowmya
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SQL Server LEAD more than one row

I know that I can use LAG and LEAD to get the previous and subsequent rows from a results set. What I want to know is how to get the subsequent row, and the row after that one, and the next row. I don't want to use a cursor if pivot, if possible. Is…
Steve_Malcolm
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Calculating days since and days until next event

I had written some code months ago to find the days until the next visit and the days since the last visit to track patient progress and identify missed appointments. This code worked beautifully and gave the correct number of days (I verified a…
regents
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Date difference over consecutive rows filtered to one instance of consecutive values using LEAD function

Basically the result i need is price change ranges for each item, i need to extract an item price and the date of the transaction with an end date set to the next time that item price is changed. Given this table create table myTable(id int, Price…
mhDuke
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SQL Server Lag / Lead Across Groups / Dense Rank

I hoping to find the answer on how I can fill in lead and lag values. Input: BRAND Promo_Start VALUE TESLA 2016-06-05 NULL TESLA 2016-06-12 NULL TESLA 2016-06-19 40000 TESLA 2016-06-26 75000 TESLA 2016-07-03 75000 TESLA 2016-07-10…
Mariah Akinbi
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dplyr: fill series in grouped data.frame after using lead()

Please consider the following: In a data.frame similar to the example below, the dates of when a medication was given are noted per patient. The goal is to compute the "time to next treatment" which is defined as the days between the start of one…
Frederick
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R compare dates on next rows

I have this dataframe in R raw_payment_id from_bank_account amount posted_at 1 620691 SK660900000000062087 20.0 2018-02-25 2 618433 SK660900000000062087 …
Jack_Carver
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