Database additions and deletions to search--2017-04-08

First, new data:

1. Inert into table name values (Field 1 value, field 2 value)

2. Inert into table name (Field 1, Field 2) VALUES (Field 1 value, field 2 value)

Ii. Delete data: Delete from table name where condition

Third, modify the data: Update table name set field 1 = Field 1 value, field 2 = Field 2 value where condition

Iv. Finding data: Select field 1, Field 2 from table name where condition

Note: equal sign, single quotation mark, double quotation mark are all in the English state! Don't hit the wrong table! Don't make the wrong field!

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Database additions and deletions to search--2017-04-08