Mssql comment

The server does not evaluate the comment. Es gibt keine Maximallänge für Kommentare. So in this example, the SQL comment will span across lines.

Note: The examples in this chapter will not work in Firefox and Microsoft Edge! In a line break after it. Comments are not supported in Microsoft Access databases. This syntax differs slightly from standard SQL comment syntax, as discussed in Section 1. Start of a Comment ”. This syntax enables a comment to extend over multiple lines because the beginning and closing sequences need not be on the same line.

The two types of syntax in SQL comment – Have a look at SQL Sequence. A comment for a column can be specified with the COMMENT option. The comment is displayed by the SHOW CREATE TABLE and SHOW FULL COLUMNS statements.

This option is operational as of MySQL 4. It is allowed but ignored in earlier versions. How do I comment SQL code out in Microsoft. How to add a comment to an existing table column. With the exception of hints, comments within SQL statements do not affect the statement execution.

Summary: in this tutorial, you will learn how to use MySQL comment to document an SQL statement or a block of code in MySQL. Is it possible to add comments somehow, somewhere? It only executes the SQL part except. This comment can span more than one line.

Software sofort nach Kauf herunterladen und direkt nutzen. So, for all the people who argue that comments are undesired because they take up processing power now have no reason to. Verschiedene Versionen verfügbar. Windows, SQL und Exchange. MAK, KMS, VDA, Embedded.

Angebote für Unternehmen. Kontaktieren Sie uns jetzt! When parsing SQL code, MySQL ignores the comments part. MySQL 添加注释( comment ) - 在 MySQL 数据库中， 字段或列的注释是用属性 comment 来添加。 创建新表的脚本中， 可在字段定义脚本中添加 comment 属性来添加注.

Jetzt kaufen und sparen! The following examples show you how to add comments using both techniques. You can comment out one or multiple lines with this technique.

The text of the comment is also available as the TABLE_ COMMENT column of the MySQL Information Schema TABLES table. In Query Analyser you can RightClick an object in the Object Browser tree and do properties to maintain properties, but now you ahve to know the code for the property. You should place your comments inside the procedure body, i. The rest of the code are instructions to create the procedure and are lost once you run them. Für SELECT, SHOW, DESCRIBE, EXPLAIN und andere Anweisungen, die eine Ergebnismenge zurückgeben, gibt mysql _query() eine Kennung resource bei Erfolg zurück oder FALSE bei Fehlern.

When you add a comment you need to change the table structure (table comments ). INFORMATION_SCHEMA is a database within each MySQL instance, the place that stores information about all the other databases that the MySQL server maintains. The INFORMATION_SCHEMA database contains several read-only tables.