Recent questions tagged MySQL

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I couldn't think of a title for this and so didn't even know where to start researching for myself. I have ... 'm using MySQL with php. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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697 views

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mysql - Screenshot of current page using PHP

Duplicate: website screenshots using php Is it possible to take a screenshot of the current page using PHP? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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890 views

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mysql - Storing IDs as comma separated values

How can I select from a database all of the rows with an ID stored in a varchar comma separated. for example ... SELECT the rows with those IDs? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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687 views

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mysql - how do I fix full text search for 3 characters?

I have used full text search mysql. My code is select * from uh_property WHERE match(fieldname) against(' ... anyway to solve this problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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878 views

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mysql - ERROR 1215: Cannot add foreign key constraint when using ON DELETE SET NULL

I'm trying to create the following tables in MySQL. The first one: CREATE TABLE IF NOT EXISTS address( ... this create table statement failing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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891 views

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mysql - A.* isn't in GROUP BY with left join on laravel query builder

$search_alls= DB::table('a16s as A') ->select('A.id') // ->select('A.*') ->addSelect(DB::raw('SUM ... to many relationship to the B.p_id column. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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660 views

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mysql - How can I get the number of rows 'returned' from a result set of a stored procedure

Is there a way to get the number of rows 'returned' from a stored procedure? I know the result set is not ... I don't maintain it twice.. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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691 views

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mysql - Problem with return variable in bash

This mysql command line return me: count(*) 19. It's a big problem for me because I just want 19 to make ... --user=root --password=hbbfe shop) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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572 views

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mysql - How would I make this query run faster?

How would I make this query run faster...? SELECT account_id, account_name, account_update, account_sold, account_mds, ... ftp_id, ppc_id ... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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641 views

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mysql - PHP mysql_stmt::fetch() gives PHP Fatal error memory exhausted

CentOS 6.4 PHP 5.3.3 MySQL 5.1.69 x86_64 mysql_stmt::fetch() When executing fetch using a prepared statement, PHP ... p>status = $status</p> "; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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789 views

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mysql - Is there any harm in resetting the auto-increment?

I have a 100 million rows, and it's getting too big. I see a lot of gaps. (since I delete, add, ... mysql> ALTER TABLE tbl AUTO_INCREMENT = 1; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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816 views

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mysql - SQL fixed-value IN() vs. INNER JOIN performance

In answer to this SQL question, I've encountered a statement that fixed-value IN() operator is much slower than ... set of values, not subquery. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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mysql - Can't detect null value from JSON_EXTRACT

I have a database that has an array of data stored in a JSON column. I need to find all values that ... null values pulled from a JSON_EXTRACT? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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966 views

1 answer

mysql - Knex.js - How To Update a Field With An Expression

How do we get Knex to create the following SQL statement: UPDATE item SET qtyonhand = qtyonhand + 1 WHERE ... the update statement is executed. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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990 views

1 answer

mysql - hotel reservation system SQL query: identify when one specific room is available

I have a query for a hotel reservation system and I need to find dates when a specific room is available ... the queries work most efficiently. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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mysql - PHP While loop displaying only last row

I'm using TCPDF library to generate PDF of a table . Table has few number of rows say 10 Among that two rows has ... 'htmlout.pdf', 'I'); ?> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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mysql - PHP/MySQLi: SET lc_time_names and DATE_FORMAT() into a mysqli query?

I use the next code to retrieve data from a table in the database: $check_sql = 'SELECT personID, name, ... the $check_sql variable?? Thanks!! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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800 views

1 answer

mysql - How to connect amazon RDS in iOS

I am making an app in which i was using Amazon Simple db but now i have changed the simple db to amazon rds ... use amazon rds in iOS app thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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629 views

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mysql - Error 1062 - Duplicate entry '127' for key 'PRIMARY' - can't find the reason

I'm getting this error: #1062 - Duplicate entry '127' for key 'PRIMARY' and can't find the reason. The query : INSERT ... `portautomadb`.`tag` (`codigo`) VALUES ('C0'); INSERT INTO...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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681 views

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mysql - Unable to install mysqlclient Python package on Windows

I am trying to install the mysqlclient Python package (https://pypi.python.org/pypi/mysqlclient) into a virtual ... mysqlclient on Windows 7? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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707 views

1 answer

mysql - php shorten amount of text displayed

I am trying to limit the amount of text/data is being shown from MySQL not MySQL LIMIT but limiting it on the ... one help me out with it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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716 views

1 answer

mysql GRANT + WHERE

I want to give permissions only to specificated rows in mysql. table: messages cols: from, to, message GRANT ALL ... how to solve the problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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735 views

1 answer

mysql - How to Maintain Foreign Key Constraint Across Different Databases?

I know, I know, putting two related tables on different databases isn't exactly the best design practice. But ... I am using MySQL and Symfony See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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606 views

1 answer

mysql - Why I need to double-escape (use 4 ) to find a backslash ( ) in pure SQL?

I do not understand this MySQL behaviour : if I want to display a, I can just select "a\b" which work without ... 2 rows in set (0.04 sec) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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685 views

1 answer

mysql - Unable to load dynamic library 'c:/wamp/bin/php/php5.5.12/ext/php_intl.dll'

I am attempting to connect from an android app to mySQL database within the WAMP server. I am getting this ... this or any potential solutions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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764 views

1 answer

mysql - Codeigniter Active Record 'where_or' grouping

Is it possible to group and_where / or_where / or_like... statements together so as not to mix with other and ... %name1% OR name LIKE %name2%) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.6k views

1 answer

mysql - fetch API always returns {"_U": 0, "_V": 0, "_W": null, "_X": null}

The below code always return the below wired object {"_U": 0, "_V": 0, "_W": null, "_X": null} as ... for the my problem. Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

1 answer

mysql - SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails

I am trying to insert values into my comments table and I am getting a error. Its saying that I can not add ... NO ACTION ON UPDATE NO ACTION) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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