[MySQL study notes 8] Basic writing rules of SQL

1. The SQL statement should end with a semicolon ( ; );
2. SQL does not distinguish the case of keywords, but the data inserted into the table is case-sensitive;
3. The win system does not distinguish the case of the table name and field name by default;
4. Linux / mac strictly distinguishes the case of table names and field names by default;
5. The way of writing constants is fixed;
6. Words need to be separated by half-width spaces or newlines.