No cache version.


Caching disabled. Default setting for this page:enabled (code DEF204)
If the display is too slow, you can disable the user mode to view the cached version.

Rechercher dans le manuel MySQL

Search Results
MySQL 8.0 Reference Manual
Displaying 151 to 154 of 154 total results
12.2 Type Conversion in Expression Evaluation
https://dev.mysql.com/type-conversion.html
One way to avoid such problems is to use CAST() so that a value is not converted implicitly to a float-point number: mysql> SELECT CAST('18015376320243459' AS UNSIGNED) = 18015376320243459; -> 1 For more information about floating-point comparisons, ... When an operator is used with operands of different types, type conversion occurs to make the operands ...
8.2.1.1 WHERE Clause Optimization
https://dev.mysql.com/where-optimization.html
This section discusses optimizations that can be made for processing WHERE clauses. The examples use SELECT statements, but the same optimizations apply for WHERE clauses in DELETE and UPDATE statements. Note Because work on the MySQL optimizer is ...
29.2.4.6 Writing INFORMATION_SCHEMA Plugins
https://dev.mysql.com/writing-information-schema-plugins.html
static ST_FIELD_INFO simple_table_fields[]= { {"NAME", 10, MYSQL_TYPE_STRING, 0, 0 0, 0}, {"VALUE", 6, MYSQL_TYPE_LONG, 0, MY_I_S_UNSIGNED, 0, 0}, {0, 0, MYSQL_TYPE_NULL, 0, 0, 0, 0} }; For more information about the column information structure, ...
13.3.8.1 XA Transaction SQL Statements
https://dev.mysql.com/xa-statements.html
To perform XA transactions in MySQL, use the following statements: XA {START|BEGIN} xid [JOIN|RESUME] XA END xid [SUSPEND [FOR MIGRATE]] XA PREPARE xid XA COMMIT xid [ONE PHASE] XA ROLLBACK xid XA RECOVER [CONVERT XID] For XA START, the JOIN and ...

Find a PHP function

Document created the 26/06/2006, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/mysql-rf-fct-unsigned-p-16.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.

References

  1. View the html document Language of the document:en Manuel MySQL : https://dev.mysql.com/

These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.

Contents Haut