I’m looking for an efficient way to take a raw sql file and have it executed synchronously against a postgres database, akin to if you ran it through psql. I have an sql file which creates all databases, imports data, etc. I need to execute this using node.js but cannot find any module which does this a…
Tag: sql
change sql permission to prevent SQL injection
I’m currently making a website using PHP and MYSQLi. And I’ve been read a lot about SQL injection. As answered on other questions from StackExchange, 2 ways of prevent it is by using prepared statement and escaping string. Since I’m not able to do prepared statement (I’ve tried to make…
SQL query search by ID and get another attribute of the record
I’m working on a DB where I need to search MAX(ID), where ID is an autonumber, (basically the most recent record/last record) and then when found I want to get the receipt number. e.g. receipt table …
Compare items in a SQL column with array
I have a SQL server table where I want to query for items on rows which have a value equal to an item in Array. Here’s my example: And my array: So, I want to return from SQL rows matching items in the array. my SQL query should return items where column1 matches an item in the array: This all
MySQL – Select only numeric values from varchar column
Consider the following table : How can I write a select statement that would only return the numeric values like SQLFiddle Answer
concatenate tinyint datatypes column using derived column in ssis
I have asked a similar Question before but this time I have problems with single-byte unsigned integer What I am trying to achieve is Column 5: Columns 1, Column 2, Column 3 and Column 4 data types is Tinyint but for Column 5 I need it as a string preferably varchar 100. So I tried: But I can’t seem to
MySQL SubString Returns Integer
I’ve got a table with a varchar(128) field called identifier. It is supposed to get a 3 letter identifier followed by an indexing number: At some point in the past, there was a bug and about 5,000 records were input as: Our numbers do not go that high, so these values are padded with zeros (0). I wrote …
Emulating materialized views in PostgreSQL with concurrent refreshes
I’m using PostgreSQL 9.2.4 and would like to emulate a materialized view. Are there any well-known methods for doing this, including concurrent refreshes? Answer PostgreSQL wiki – materialized views links to two trigger-based implementations. The general idea is to put AFTER INSERT OR UPDATE OR DE…
How to compare records in a SQL Table
I have a table name TransactionTable. If InsuranceCode = ‘ADAP’ and IsADAP = 1, I have to filter these records and return the remaining records. I am trying to write something similar to this syntax. Total records in TransactionTable is 1832 and Total records on filtration criteria is 109. I expec…
Using TIMESTAMPDIFF with JPA criteria query and hibernate as the provider
I have a data table with columns setup and release, both of which hold timestamps. My goal is to create an equivalent of the SQL query below using CriteriaQuery. SQL Query:SELECT TIMESTAMPDIFF(SECOND, setup, released)) as sum_duration FROM calls The CriteriaBuilder#diff() function clearly does not work as it …