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6 mar 2011 · To query the index information of a table, you use the SHOW INDEXES statement as follows: SHOW INDEXES FROM table_name; You can specify the database name if you are not connected to any database or you want to get the index information of a table in a different database: SHOW INDEXES FROM table_name IN database_name;
To be clear, here's an example: I have 500 users in a table, I want to select the user johndoe and the index of that user, so if johndoe is the 100th user in my table, I want to be able to select the information for him in a similar way to this: SELECT *, INDEX_OF(id) FROM users WHERE username='johndoe'; So I'd get the details about the user ...
To query the index information of a table, you use the SHOW INDEXES statement as follows: SHOW INDEXES FROM table_name; Code language: SQL (Structured Query Language) ( sql ) To get the index of a table, you specify the table name after the FROM keyword.
Information about table indexes is also available from the INFORMATION_SCHEMA STATISTICS table. See Section 28.3.34, “The INFORMATION_SCHEMA STATISTICS Table”.The extended information about hidden indexes is available only using SHOW EXTENDED INDEX; it cannot be obtained from the STATISTICS table.. You can list a table's indexes with the mysqlshow -k db_name tbl_name command.
2 lut 2024 · Today’s article educates on showing indexes for a table or a database in MySQL. We will learn how to get indexes from one or multiple tables within a database or all databases. We will use SHOW INDEXES, SHOW EXTENDED INDEX, SELECT DISTINCT commands, and the STATISTICS table to get the indexes.
We can get the index information of a table using the Show Indexes statement. This statement can be written as: snippet. mysql> SHOW INDEXES FROM table_name; In the above syntax, we can see that if we want to get the index of a table, it requires to specify the table_name after the FROM keyword.
30 cze 2022 · In this tutorial, we will see how we can view the index of a table or a database using the SHOW INDEX command and we'll also learn how to see all the indexes.
