In an effort not to break old code making any particular assumptions, MySQL retained the broken implementation and called the newer, fixed versionutf8mb4. This has led to some confusion with the name being misinterpreted as if it's some kind of extension to UTF-8 or alternative form of UTF...
The latter may have low impact if no index is required, or a huge impact if the usage of an index is prevented because the comparison and the column use different collation. In practice: mysql> SET NAMES utf8mb4; -- we will be using this charset to send literals mysql...
Mapping of internet/intranet data type System.Uri to MySQL string data types is supported in EF Core 3, EF Core 5, EF Core 6 Mapping of network data types System.Net.IPAddress and System.Net.NetworkInformation.PhysicalAddress to MySQL string data types is supported in EF Core 5 and EF Cor...
What is the Action keyword in MySQL? I'm converting a MySQL query into cockroachdb query and the MySQL query I'm seeing is: CREATE TABLE tabDocType Action ( name varchar(140) COLLATE utf8mb4_unicode_ci NOT NULL, creation TIMESTAMP(6) DEFAULT NULL, modified TIMESTAMP(6) DEFAULT NULL, m...
CREATE TABLE [Comment] ( [PostId] int NOT NULL, [CommentId] int NOT NULL, [CommentText] varchar(max) COLLATE LATIN1_GENERAL_100_CI_AS_SC_UTF8 NOT NULL, CONSTRAINT [PK_Comment] PRIMARY KEY ([PostId], [CommentId]) ); 時態表支持擁有的實體 EF Core SQL Server 時態表 對應已在 EF7...
MySQL 8.0 deliversNOWAITandSKIP LOCKEDalternatives in the SQL locking clause. Normally, when a row is locked due to anUPDATEor aSELECT ... FOR UPDATE, any other transaction will have to wait to access that locked row. In some use cases there is a need to either return immediately if a...
-- first, create a sandbox to play in CREATE DATABASE `sandbox`; use `sandbox`; -- next, make sure that your client connection is of the same -- character/collate type as the one we're going to test next: charset utf8 collate utf8_general_ci -- now, create the table and fill ...
Upd: (MySQL) 更新 TABLE 語法生成, 增加 ENGINE, DEFAULT CHARSET, COLLATE, COMMENT 等訊息顯示(4497) - SQL 效能分析器(SQL Profiler): Add: 新增資料列文字搜尋功能(Find In Grid): 可查詢校能分析中的歷史資料(4497) - 主程式更新(Main): ...
)COLLATE='latin1_swedish_ci'ENGINE=InnoDB AUTO_INCREMENT=223323358 Based onRick James Post MySQL Big DELETEsi am aware that a big delete does require some preparation. To reduce the space needed and to improve the query speed i wonder what should be changed ...
MySQL 5.1.59 throws an error with this create table: CREATE TABLE IF NOT EXISTS `genre` ( `id` INT UNSIGNED NOT NULL AUTO_INCREMENT, `abv` CHAR(3) CHARACTER SET 'latin1' COLLATE 'latin1_bin' NULL DEFAULT NULL , `name` VARCHAR(80) NOT NULL DEFAULT '' , `parent_id` INT NULL...