Sql comment

SQL HOME SQL Intro SQL Syntax SQL Select SQL Select Distinct SQL Where SQL An Or, Not SQL Order By SQL Insert Into SQL Null Values SQL Update SQL Delete SQL Select Top SQL Min and Max SQL Count, Avg, Sum SQL Like SQL Wildcards SQL In SQL Between SQL Aliases SQL Joins SQL Inner Join SQL Left Join SQL Right Join SQL Full Join SQL Self Join SQL. Der Kommentar wird vom Server nicht ausgewertet. The server does not evaluate the comment. For example, you can include a comment in a statement that describes the purpose of the statement within your application. With the exception of hints, comments within SQL statements do not affect the statement execution.

APPLIES TO: SQL Server Azure SQL Database Azure Synapse Analytics (SQL DW) Parallel Data Warehouse. Indicates user-provided text. This SQL tutorial explains how to use comments within your SQL statements with syntax and examples. Transact-SQL Syntax Conventions.

In SQL , you can comment your code just like any other language. This method of commenting can only span a single line within your SQL and must be at the end of the line. This syntax differs slightly from standard SQL comment syntax, as discussed in Section 1. This syntax enables a comment to extend over multiple lines because the beginning and closing sequences need not be on the same line.

Everything between two dashes(–) and carriage returns is considered as comment. This comment can be placed anywhere in the code. Der größte Deal von Löwe Höhle. Nachdem das BTC-Geheimnis enthüllt wurde, werden die Leute verrückt! 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. Ask Question Asked years, months ago. Active months ago. The code examples in this document sometimes include comments that clarify the role of an SQL statement within the code, but your own SQL programs will be easier to read and to maintain if you document them with frequent comments. Comments are treated as whitespace by the parser.

The following table shows the SQL comment indicators that you can enter in your code. SQL is a standard language for storing, manipulating and retrieving data in databases. To remove a comment , write NULL in place of the text string. COMMENT stores a comment about a database object.

In den weiteren Teilen werden spezifische Aspekte der Sprache definiert. SYSDATATYPES catalog table for the row that describes the distinct type. IS string-constant Introduces the comment that you want to make.

SQL et des explications sur les principales commandes pour lire, insérer, modifier et supprimer des données dans une base.