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SQLite3::exec() - sqlite3数据库类

是丫丫呀2年前 (2023-11-21)阅读数 22#技术干货
文章标签范例

SQLite3::exec()

(PHP 5 >= 5.3.0, PHP 7)

Executes a result-less query against a given database

说明

publicSQLite3::exec(string $query): bool

Executes a result-less query against a given database.

Note: SQLite3 may need to create » temporary files during the execution of queries, so the respective directories may have to be writable.

参数

$query

The SQL query to execute(typically an INSERT, UPDATE, or DELETE query).

返回值

ReturnsTRUEif the query succeeded,FALSEon failure.

SQLite3::exec() - sqlite3数据库类

范例

SQLite3::exec()example


I was getting "database locked" all the time until I found out some features of sqlite3 must be set by using SQL special instructions (i.e. using PRAGMA keyword). For instance, what apparently solved my problem with "database locked" was to set journal_mode to 'wal' (it is defaulting to 'delete', as stated here: https://www.sqlite.org/wal.html (see Activating And Configuring WAL Mode)).
So basically what I had to do was creating a connection to the database and setting journal_mode with the SQL statement. Example:

Hope that helps.

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