java - Problem with SQL Query Android Where Clause -


i have following code creates table. insert data looks this

_id     date     recordname     total -------------------------------------- 7      2011     testmaxrecord     5

java code:

public static final string key_rowid = "_id";    public static final string key_date = "date"; public static final string key_total = "total"; public static final string key_record_name = "recordname";  private static final string database_create_records = "create table " + database_table_records + " ("  + key_rowid + " integer primary key autoincrement, "  + key_date + " text not null, " + key_record_name + " text not null, " + key_total + " text not null);";  public cursor getrecord(string name) throws sqlexception {   return mdb.query(true, database_table_records, new string[] {key_rowid, key_date, key_record_name, key_total}, key_record_name + " = " + name, null, null, null, null, null); }

it throws exception every time name = "testmaxrecord" (despite there being data in there) following error

android.database.sqlite.sqliteexception: no such column: testmaxrecord: , while compiling: select distinct _id, date, recordname, total records recordname=testmaxrecord

which looks me looking column title testmaxrecord. android newbie copied portion pretty example (it using int though). there difference between using int , strings on query?

you need put single quotes around value, otherwise treat column.

key_record_name + " = '" + name + "'"

note: solution open sql injection, should use parameter placeholders, , pass values via selectionargs argument: 

public cursor getrecord(string name) throws sqlexception {   return mdb.query(true,      database_table_records,      new string[] {key_rowid, key_date, key_record_name, key_total},      key_record_name + " = ?",     new string[] {name},     null, null, null, null); }

alternatively, sqlitequerybuilder


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