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Questions tagged [tinyint]

tinyint is one of the Exact number data types that use integer data.

Integer data from 0 through 255. Storage size is 1 byte.

Type    Storage     Minimum Value   Maximum Value
        (Bytes)   (Signed/Unsigned) (Signed/Unsigned)

TINYINT   1          -128             127

Reference

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tinyint in mysql is shown as boolean value in c#

My query to get a tinyint(1) field from a table in mysql in as below mysqlcommand.selectquery="select vehicletype from vehicles where id=1" possible values for vehicletype is 1 to 7 but the output in the datatable row for the field is shown as…
sjd
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MySQL order by multiple columns ignoring last order by directive

When using the following query: SELECT id, rater_id, product_id, is_valid FROM `ratings` WHERE (`ratings`.element_id = 3151) ORDER BY id DESC, product_id DESC, is_valid ASC; i would expect that the result set will first be sorted by id first,…
Elad Meidar
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Strange behavior with php empty and 0 vs "0"

I'm watching a video tutorial where the instructor is testing a form submission. The code he is using is: $required_fields = array('menu_name', 'position', 'visible'); foreach ($required_fields as $fieldname) { if (!isset($_POST[$fieldname]) ||…
Nathan
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Cannot change to BOOLEAN a column in table using DBeaver

I have one table in MySQL where I would like to change the "Data type" of two columns in DBeaver (version 22.3.4). The two columns are MD_Estimated and BL_Estimated as you can see in this image: However, when I save the changes, this is the code…
antecessor
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DBT MySQL producing boolean columns as INT, should be TINYINT

I'm trying to change how we make some transformations in our tables on RDS MySql. This table have 20 million records and 200 columns. We have a pipeline executed monthly where we download the table to an EC2, use python to do the transformation,…
David
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How to cast a tinyint value from a MySql column to C# using Linq?

I'm trying to run the below query using Linq: var ResultRows = from MyRow in MyDataTable.AsEnumerable() where Convert.ToBoolean(MyRow.Field("IsTrue")) == true select MyRow; where one of the…
csharpnewbie
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How to Convert from byte? to byte[]?

I am trying to convert a byte received from a database query. EF Core returns nullable tinyint as byte? and I need to convert it to decimal. Is there any way to convert it OnModelCreating with model builder in the DbContext? I am not very familiar…
nickornotto
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MySQL 8.x: Unsigned attribute overrides the field length

Looking at integer values. It seems that setting the Unsigned attribute overrides the field length. Traditionally, MYSQL translates the BOOLEAN alias to TINYINT(1). According to the inter-webs, as of MySQL 8.0.17, display width specifications for…
UnKulMunki
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Storing something as unsigned tinyint in php

Is there a way to explicitly store my numbers in php as tinyint (1 byte instead of 4). Or could i only enforce this by storing them 4 by 4 in an int? (using a few binary operations) I generate these values by breaking a string using str_split and…
Antiz
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How restrict mysql tiny-int to accept just integer

Im trying to get eeror about invalid data for a query but it seems mysql accept strings as tiney in queries and set 0 instead of returning any error. So how can I restrict it to just accept integers. Thanks in advance.
Amirmohammad Farhang
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The TINYINT UNSIGNED data column can't minus in where clause of MySQL_8 in MacOS

Here is the data in MySQL(8.0.x) running with MacOS: ysql> desc t_room; +--------------+-------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra…
CN42
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Best way to store a "signed" TINYINT on MS SQL Server?

I need to store a value between -255 and 255 on SQL Server. I'm looking for the fastest way to SELECT these values on a large table (+5,000,000 rows) and every millisecond counts. Please suppose the structure, indexes and queries are already…
Vitox
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Create Checkbox for every Row in the Table with PHP and HTML. How can i call them in the PHP Section?

EDIT: Here is the SQL SELECT $statement = $db->prepare(" SELECT A.Vorname , A.Nachname , O.IndexcardRight , O.QuizRight , O.Admin_AdminID FROM Admin A LEFT JOIN AdminOfModule O ON…
zazaza
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Update View with UNION changes TINYINT to BIGINT

I'm adding information to a view via UNION. I currently have booleans in the table represented by TINYINT. I need to maintain these columns as TINYINT. The following information in the UNION alters the datatype to BIGINT:
REAL O G
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unable to update to default values null and empty string for tinyint and varchar fields

I have the following table schema - CREATE TABLE `tablename` ( `id` bigint(15) NOT NULL AUTO_INCREMENT, `uuid` varchar(400) NOT NULL, `pre_notif_action` varchar(30) DEFAULT '', `pre_notif_interval` tinyint(1) DEFAULT NULL, PRIMARY KEY…
Sandeepan Nath
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