我看到了一些例子,在这些例子中,我们可以使用这样的sq文件创建一个具有固定名称的表
CREATE TABLE hockeyPlayer (
player_number INTEGER NOT NULL,
full_name TEXT NOT NULL
);我需要在运行时创建任意名称的表,如何实现这一点?
UPD
在本例中,我似乎必须手动执行所有查询(就像在生成的类中那样)
val driver = DatabaseDriverFactory().createDriver(databaseName)
val tableName = "table2"
driver.execute(null, "CREATE TABLE IF NOT EXISTS $tableName (player_number INTEGER NOT NULL, full_name TEXT NOT NULL", 0, null)发布于 2021-03-26 12:30:38
下面是手动/动态表创建和操作的示例
fun test(databaseName: String, key: String?) {
val driver = DatabaseDriverFactory().createDriver(databaseName, key)
val tableName = "table2"
val identifier = 1
// identifier here must be null to avoid SQLiteBindOrColumnIndexOutOfRangeException
// in INSERT statements below
driver.execute(null, "CREATE TABLE IF NOT EXISTS $tableName (player_number INTEGER NOT NULL, full_name TEXT NOT NULL)", 0, null)
var cursor = driver.executeQuery(identifier, "SELECT * FROM $tableName", 0, null)
if (!cursor.next()) {
Napier.i("EMPTY TEST DB")
driver.execute(identifier, "INSERT INTO $tableName (player_number, full_name) VALUES (?, ?)", 2) {
// indices start here from 1
bindLong(1, 1)
bindString(2, "John")
}
driver.execute(identifier, "INSERT INTO $tableName (player_number, full_name) VALUES (?, ?)", 2) {
bindLong(1, 2)
bindString(2, "Mike")
}
}
cursor = driver.executeQuery(identifier, "SELECT * FROM $tableName", 0, null)
while (cursor.next()) {
// indices start here from 0
val number = cursor.getLong(0)
val name = cursor.getString(1)
Napier.i("Player #$number $name")
}
}https://stackoverflow.com/questions/66798870
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