Convert INT to VARCHAR SQL
Use the convert function. SELECT CONVERT(varchar(10), field_name) FROM table_name
select
How to filter an array of objects based on values in an inner array with jq?
Very close! In your select expression, you have to use a pipe (|) before contains. This filter produces the expected output. . – map(select(.Names[] | contains (“data”))) | .[] .Id The jq Cookbook has an example of the syntax. Filter objects based on the contents of a key E.g., I only want objects whose genre … Read more
Select objects based on value of variable in object using jq
Adapted from this post on Processing JSON with jq, you can use the select(bool) like this: $ jq ‘.[] | select(.location==”Stockholm”)’ json { “location”: “Stockholm”, “name”: “Walt” } { “location”: “Stockholm”, “name”: “Donald” }
Why does the jquery change event not trigger when I set the value of a select using val()?
Because the change event requires an actual browser event initiated by the user instead of via javascript code. Do this instead: $(“#single”).val(“Single2”).trigger(‘change’); or $(“#single”).val(“Single2”).change();
SQL join: selecting the last records in a one-to-many relationship
This is an example of the greatest-n-per-group problem that has appeared regularly on StackOverflow. Here’s how I usually recommend solving it: SELECT c.*, p1.* FROM customer c JOIN purchase p1 ON (c.id = p1.customer_id) LEFT OUTER JOIN purchase p2 ON (c.id = p2.customer_id AND (p1.date < p2.date OR (p1.date = p2.date AND p1.id < p2.id))) … Read more
Select all columns except one in MySQL?
Actually there is a way, you need to have permissions of course for doing this … SET @sql = CONCAT(‘SELECT ‘, (SELECT REPLACE(GROUP_CONCAT(COLUMN_NAME), ‘<columns_to_omit>,’, ”) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = ‘<table>’ AND TABLE_SCHEMA = ‘<database>’), ‘ FROM <table>’); PREPARE stmt1 FROM @sql; EXECUTE stmt1; Replacing <table>, <database> and <columns_to_omit>
MySQL: Select DISTINCT / UNIQUE, but return all columns?
You’re looking for a group by: select * from table group by field1 Which can occasionally be written with a distinct on statement: select distinct on field1 * from table On most platforms, however, neither of the above will work because the behavior on the other columns is unspecified. (The first works in MySQL, if … Read more
SQL query return data from multiple tables
Part 1 – Joins and Unions This answer covers: Part 1 Joining two or more tables using an inner join (See the wikipedia entry for additional info) How to use a union query Left and Right Outer Joins (this stackOverflow answer is excellent to describe types of joins) Intersect queries (and how to reproduce them … Read more
Select columns from result set of stored procedure
Can you split up the query? Insert the stored proc results into a table variable or a temp table. Then, select the 2 columns from the table variable. Declare @tablevar table(col1 col1Type,.. insert into @tablevar(col1,..) exec MyStoredProc ‘param1’, ‘param2’ SELECT col1, col2 FROM @tablevar
How to get a list of column names on Sqlite3 database?
PRAGMA table_info(table_name); will get you a list of all the column names.