问题
Here's my code:
String CREATE_DATABASE = "CREATE TABLE " + TABLE_NAME + "(" +
KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
"title TEXT, "+
"author TEXT, "+
"state TEXT);";
db.execSQL(CREATE_DATABASE);
The LogCat says : 12-11 23:43:50.553: E/AndroidRuntime(3706): android.database.sqlite.SQLiteException: near "CREATE TABLE": syntax error (code 1): , while compiling: CREATE TABLE PapersTable(_id INTEGER PRIMARY KEY AUTOINCREMENT, title TEXT, author TEXT, state TEXT);
回答1:
The CREATE TABLE
syntax is all right as you've posted it.
I suspect there's a non-breaking space (ASCII 0xA0) between CREATE
and TABLE
. Replace it with the regular space (ASCII 0x20). That would explain the syntax error you posted: parser is treating CREATE TABLE
as a single unknown token and not as two separate known tokens CREATE
and TABLE
.
What is definitely wrong is that you call db.close()
on the SQLiteDatabase db
passed in as a parameter to your function. You should only close databases you opened yourself and closing it this way will lead to an exception, albeit a different one.
回答2:
Try this code in your onCreate method.
- Remove AUTOINCREMENT for KEY_ID as it is already declared as Primary KEY.
- Remove ";" you placed just after the last bracket in string i.e. second last semicolon in string CREATE_DATABASE.
- Remove db.close() from oncreate()
Code To Replace: String CREATE_DATABASE = "CREATE TABLE "+TABLE_NAME+ " ( "+KEY_ID+" INTEGER PRIMARY KEY, "+KEY_TITLE+"TEXT, "+KEY_AUTHOR+"TEXT, "+KEY_STATE+"TEXT )"; db.execSQL(CREATE_DATABASE);
回答3:
In SQLite, a column declared integer primary key will auto increment, so try removing that:
String CREATE_DATABASE = "CREATE TABLE " + TABLE_NAME + "(" +
KEY_ID + " INTEGER PRIMARY KEY, " +
"title TEXT, "+
"author TEXT, "+
"state TEXT);";
See this answer for reference.
来源:https://stackoverflow.com/questions/20532339/sqlite-syntax-error-near-create-table