How to query the first data in mysql

In mysql, you can use the SELECT statement with the LIMIT clause to query the first piece of data. The syntax is "SELECT *|field name list FROM table name LIMIT 0,1;". The LIMIT clause can specify which record the query results start to be displayed and how many records are displayed. The syntax is "LIMIT initial position, number of records", and the position of the first record is 0; therefore if you want to display the first data, after LIMIT The parameters must be set to 0 and 1 respectively, indicating that one piece of data will be displayed from the beginning.

The operating environment of this tutorial: windows7 system, mysql8 version, Dell G3 computer.

In mysql, you can use the SELECT statement with the LIMIT clause to query the first piece of data.

• SELECT statement is used to query data

• LIMIT clause limits the number of query results

SELECT *|字段名列表 FROM 表名 LIMIT子句;

The LIMIT clause can specify which record the query results should start displaying and how many records should be displayed. Syntax:

LIMIT 初始位置，记录数

Among them, "initial position" indicates which record to start displaying; "number of records" indicates the number of displayed records. The first record is at position 0 and the second record is at position 1. The subsequent records are deduced in sequence. The two parameters after LIMIT must be positive integers.

If you want to get the first piece of data, the parameters after LIMIT must be set to 0 and 1 respectively, which means that one piece of data will be displayed from the beginning.

So the complete syntax for querying the first piece of data:

SELECT *|字段名列表 FROM 表名 LIMIT 0,1;

Example:

Create a tb_students_score table, insert the data, and query all data

SELECT * FROM tb_students_score;

Only display the first piece of data

SELECT * FROM tb_students_score LIMIT 0,1;

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