1.row_numberselect *, ROW_NUMBER() OVER(ORDER BY Amount) AS rowno from tCeShi SQLite Release 3.25.0 中增加的窗口函数,可以使用sqlite_version()函数查询SQLite版本2.countselect *, (select count(*) from tCeShi b where a.Amount >= b.Amount) as rowno from tCeShi a ...
登录后复制.binary on|offTurn binary output on or off. Default OFF 登录后复制.cd DIRECTORYChange the working directory to DIRECTORY 登录后复制.changes on|offShow number of rows changed by SQL 登录后复制.check GLOBFail if output since .testcase does not match 登录后复制.clone NEWDBClone data ...
sqlite>.schemaCOMPANYCREATETABLECOMPANY(IDINTPRIMARYKEYNOTNULL,NAMETEXTNOTNULL,AGEINTNOTNULL,ADDRESSCHAR(50),SALARYREAL); 最后将数据库导出到.sql文件查看:
+ "_id INTEGER PRIMARY KEY AUTOINCREMENT," + "name TEXT,"+"hp INTEGER DEFAULT 100,"+ "mp INTEGER DEFAULT 100," + "number INTEGER);"; DatabaseHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); } /**单例模式**/ static synchronized DatabaseHelper getInstan...
printf(query.lastError().text().toLocal8Bit().data());//若不成功,打印错误 } else { printf("insert ok"); } db.close(); } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21.
sqlite3_column_text16 sqlite3_column_type sqlite3_column_value sqlite3_data_count sqlite3_db_handle sqlite3_finalize sqlite3_reset sqlite3_sql sqlite3_step sqlite3_stmt_busy sqlite3_stmt_readonly sqlite3_stmt_status 数据块 sqlite3_blob_bytes sqlite3_blob_close sqlite3_blob_read sqlite3_blo...
importsqlite3conn=sqlite3.connect('example.db')c=conn.cursor()c.execute('''CREATETABLEstocks(date text,trans text,symbol text,qty real,price real)''') 1. 2. 3. 4. 5. 6. 7. 8. 在上面的示例中,我们创建了一个名为stocks的表格,其中包含五个列:date、trans、symbol、qty和price。
create tableifnot exists'kyj_user'(idTEXT,mobileTEXT,gqidTEXT,tokenTEXT) 图2:运行结果。 脚本执行之后,发现在jmeter的bin文件夹下面有一个db文件。 四、从mysql数据库中查询出数据,将查询到的数据写入sqlite数据库中。 1.最大值:mbs_#=100 图3:最大值。
usingSystem;usingSystem.Data;usingSystem.Text.RegularExpressions;usingSystem.Xml;usingSystem.IO;usingSystem.Collections;usingSystem.Data.SQLite;namespaceDBUtility.SQLite {//////SQLiteHelper is a utility class similar to "SQLHelper" in MS///Data Access Application Block and follows similar pattern.//...
** connections to the same database will know to reread the schema.*/staticconstunsignedcharaCopy[] ={ BTREE_SCHEMA_VERSION,1,/*Add one to the old schema cookie*/BTREE_DEFAULT_CACHE_SIZE,0,/*Preserve the default page cache size*/BTREE_TEXT_ENCODING,0,/*Preserve the text encoding*/BTREE...