Sample Data: |lastmodified|Number1|Number2|password_mod| |2020-01-25 |250000 |100000 |true | |2020-01-26 |250000 |200000 |false | |2020-02-01 |300000 |200000 |false | |2020-02-…
Tag: sql
How setting Auto Commit off, helps to start a transaction in JDBC?
Many articles and documents says that by setting Auto Commit off, You can start a transaction in JDBC. This Topic also ask same question but It doesn’t answer to the question and just said: …
How do I reference a user profile path from within Microsoft Access SQL INSERT INTO statement?
I’m using a cloud storage drive to share some complicated Access databases with my coworkers. I’d like the databases to execute directly from the local cloud storage path. C:Usersexample.dude…
Split string values with various length spearated spaces into three columns
My tableA col1 has three values and separated by various length. I need to separate it and into three columns and place it into Z1, Z2, and Z3 respectively. Also, on some individual value has spaces …
Ideal Postgres Index For Json Data With Integer Timestamp
I have millions of records in this table using Amazon Aurora Postgres 10.7: Example row: {“id”: “abc”, “ts”: 1580879910, “data”: “my stuff”} I have these queries that take dozens of seconds: I’m trying to improve performance here, and these are…
CONNECT BY PRIOR and concatenation of parent – child hierarchy
I have this table: img Desired result: img What i’m trying: select SEG from my_table CONNECT BY PRIOR PARENT_SEG_ID = SEG_ID; So, in the column LEVEL_LOCATOR we can see f.e. that the LEVEL 5.9 has 6 childs, and 5.9.4 has 2 childs. And, f.e., the parent of the child 5.9.1 is Postpaid that has the SEG_ID …
Accessing PostgreSQL Fields via Indexing
Is there a way in PostgreSQL to access fields without explicitly providing the column name? For example, instead of the statement: there’s a (possible) alternative of: Answer There is no such syntax in Postgres’ SQL. You could always resort to having code that dynamically constructs the query for …
sql table comparisons – postgres
I have two tables with some columns being the same: TABLE A TABLE B I’d like to return the following: How do I check what rows from table B are in table A and also return Col4 (from table B) where they match in the query. I was using EXCEPT which worked great but now I need to have the
Oracle: How fill in the gaps between rows using previous next row’s values using sql
I have the table: How fill in the gaps between rows using previous next row’s values in Oracle to get the following output: the values of previous and next columns should be the same to fill the rows. Answer If you want all rows to be the same for a given year and id, just use max(): There seems to
How do I join a sparse table and fill rows between in SQL Server
How can I apply weights from a one table to another [Port] where the weight table has sparse dates? [Port] table [Weights] table So, I want to use the weights as if I had a full table like this below. i.e. change to new weight on first day it appears in [Weights] table: Answer You can use apply: outer apply