How do I see table comments in MySQL?

How do I see table comments in MySQL?

Show table column comments

1. SELECT a. COLUMN_NAME, a. COLUMN_COMMENT.
2. FROM information_schema. COLUMNS a.
3. WHERE a. TABLE_NAME = ’employee’;

How do I view comments in a table?

You can view the comments on a particular table or column by querying the data dictionary views USER_TAB_COMMENTS , DBA_TAB_COMMENTS , or ALL_TAB_COMMENTS or USER_COL_COMMENTS , DBA_COL_COMMENTS , or ALL_COL_COMMENTS . Specify the name of the operator to be commented.

How do I add comments to a table in MySQL?

The comments can be added to the MySQL columns while creating a table by adding the COMMENT keyword after the column definition, as shown above for column emp_name. The table is created successfully with comments. Confirm the same in column information using MySQL workbench.

How show all columns in MySQL table?

The more flexible way to get a list of columns in a table is to use the MySQL SHOW COLUMNS command. As you can see the result of this SHOW COLUMNS command is the same as the result of the DESC statement. For example, the following statement lists all columns of the payments table in the classicmodels database.

How do I view comments in SQL?

Comments Within SQL Statements

1. Begin the comment with a slash and an asterisk (/*). Proceed with the text of the comment. This text can span multiple lines.
2. Begin the comment with — (two hyphens). Proceed with the text of the comment. This text cannot extend to a new line.

How do I comment in a MySQL query?

In MySQL, a comment started with — symbol is similar to a comment starting with # symbol. When using the — symbol, the comment must be at the end of a line in your SQL statement with a line break after it. This method of commenting can only span a single line within your SQL and must be at the end of the line.

How do I comment in SQL code?

How do I show all columns in a table in SQL?

In a query editor, if you highlight the text of table name (ex dbo. MyTable) and hit ALT + F1 , you’ll get a list of column names, type, length, etc.

How do I show the results grid in MySQL Workbench?

1. Here is a simple technique to get back the results grid in MySql WorkBench. Place the text cursor on a query and use the “EXPLAIN command” for the statement under the cursor.
2. That will open the Visual Explain window. In that window you can find Results Grid.
3. You can see the result grid again.

How do I create tables in MySQL?

MySQL can hold multiple databases. To create a table in a database using mysql prompt, first select a database using ‘USE ’. Consider a database “studentsDB” in MySQL, in which we shall create a table called students with properties (columns) – Name and Roll Number.

How do I show tables in MySQL?

To list/show the tables in a MySQL database: Log into your database using the mysql command line client Issue the use command to connect to your desired database (such as, use mydatabase) Use the MySQL show tables command, like this:

What is a comment line in MySQL?

In MySQL, a comment started with — symbol is similar to a comment starting with # symbol. When using the — symbol, the comment must be at the end of a line in your SQL statement with a line break after it. This method of commenting can only span a single line within your SQL and must be at the end of the line.

What is a temporary table in MySQL?

In MySQL, a temporary table is a special type of table that allows you to store a temporary result set, which you can reuse several times in a single session. A temporary table is very handy when it is impossible or expensive to query data that requires a single SELECT statement with the JOIN clauses.