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Select random row from a sqlite table
I have a sqlite table with the following schema:
7 Answers
7
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MySQL - UPDATE multiple rows with different values in one query
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You can do it this way:
UPDATE table_users
SET cod_user = (case when user_role = 'student' then '622057'
when user_role = 'assistant' then '2913659'
when user_role = 'admin' then '6160230'
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Add table row in jQuery
What is the best method in jQuery to add an additional row to a table as the last row?
39 Answers
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Include headers when using SELECT INTO OUTFILE?
...e2', 'ColName3'
UNION ALL
SELECT ColName1, ColName2, ColName3
FROM YourTable
INTO OUTFILE '/path/outfile'
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SQL Server - Return value after INSERT
... get a the key-value back after an INSERT-statement.
Example:
I've got a table with the attributes name and id. id is a generated value.
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Easiest way to rename a model using Django/South?
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To answer your first question, the simple model/table rename is pretty straightforward. Run the command:
./manage.py schemamigration yourapp rename_foo_to_bar --empty
(Update 2: try --auto instead of --empty to avoid the warning below. Thanks to @KFB for the tip.)
If ...
What is the error “Every derived table must have its own alias” in MySQL?
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Every derived table (AKA sub-query) must indeed have an alias. I.e. each query in brackets must be given an alias (AS whatever), which can the be used to refer to it in the rest of the outer query.
SELECT ID FROM (
SELECT ID, msisdn F...
H2 in-memory database. Table not found
I've got a H2 database with URL "jdbc:h2:test" . I create a table using CREATE TABLE PERSON (ID INT PRIMARY KEY, FIRSTNAME VARCHAR(64), LASTNAME VARCHAR(64)); . I then select everything from this (empty) table using SELECT * FROM PERSON . So far, so good.
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How do I base64 encode (decode) in C?
...#include <stdint.h>
#include <stdlib.h>
static char encoding_table[] = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
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How to split a string literal across multiple lines in C / Objective-C?
....) #__VA_ARGS__
const char *sql_query = QUOTE(
SELECT word_id
FROM table1, table2
WHERE table2.word_id = table1.word_id
ORDER BY table1.word ASC
);
the preprocessor turns this into:
const char *sql_query = "SELECT word_id FROM table1, table2 WHERE table2.word_id = table1.word_id O...