2

我有两张表要填写，“msrun”和“feature”。'feature' 有一个指向 'msrun' 表的 'msrun_name' 列的外键。在表格中插入工作正常。但是，当我尝试从“功能”表中删除时，出现以下错误：

pysqlite2.dbapi2.OperationalError: foreign key mismatch

从SQLite手册中的外键规则：

- The parent table does not exist, or
- The parent key columns named in the foreign key constraint do not exist, or
- The parent key columns named in the foreign key constraint are not the primary key of the parent table and are not subject to a unique constraint using collating sequence specified in the CREATE TABLE, or
- The child table references the primary key of the parent without specifying the primary key columns and the number of primary key columns in the parent do not match the number of child key columns.

我看不到我违反了什么。我的创建表如下所示：

DROP TABLE IF EXISTS `msrun`;
-- -----------------------------------------------------
-- Table `msrun`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `msrun` (
  `msrun_name` VARCHAR(40) PRIMARY KEY NOT NULL ,
  `description` VARCHAR(500) NOT NULL );

DROP TABLE IF EXISTS `feature`;
-- -----------------------------------------------------
-- Table `feature`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `feature` (
  `feature_id` VARCHAR(40) PRIMARY KEY NOT NULL ,
  `intensity` DOUBLE NOT NULL ,
  `overallquality` DOUBLE NOT NULL ,
  `charge` INT NOT NULL ,
  `content` VARCHAR(45) NOT NULL ,
  `msrun_msrun_name` VARCHAR(40) NOT NULL ,
  CONSTRAINT `fk_feature_msrun1`
    FOREIGN KEY (`msrun_msrun_name` )
    REFERENCES `msrun` (`msrun_name` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE UNIQUE INDEX `id_UNIQUE` ON `feature` (`feature_id` ASC);
  CREATE INDEX `fk_feature_msrun1` ON `feature` (`msrun_msrun_name` ASC);

据我所知，父表存在，外键指向正确的父键，父键是主键，外键指定主键列。

产生错误的脚本：

from pysqlite2 import dbapi2 as sqlite
import parseFeatureXML


connection = sqlite.connect('example.db')
cursor = connection.cursor()    
cursor.execute("PRAGMA foreign_keys=ON")

inputValues = ('example', 'description')
cursor.execute("INSERT INTO `msrun` VALUES(?, ?)", inputValues)
featureXML = parseFeatureXML.Reader('../example_scripts/example_files/input/featureXML_example.featureXML')

for feature in featureXML.getSimpleFeatureInfo():
    inputValues = (featureXML['id'], featureXML['intensity'],
                   featureXML['overallquality'], featureXML['charge'], 
                   featureXML['content'], 'example')
    # insert the values into msrun using ? for sql injection safety
    cursor.execute("INSERT INTO `feature` VALUES(?,?,?,?,?,?)", inputValues)
connection.commit()

for feature in featureXML.getSimpleFeatureInfo():
    cursor.execute("DELETE FROM `feature` WHERE feature_id = ?", (str(featureXML['id']),))

编辑：

这些是具有链接到功能的外键的表。他们还没有被填满：

DROP TABLE IF EXISTS `convexhull`;
-- -----------------------------------------------------
-- Table `convexhull`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `convexhull` (
  `convexhull_id` INT PRIMARY KEY NOT NULL ,
  `mz` DOUBLE NOT NULL ,
  `rt` DOUBLE NOT NULL ,
  `feature_feature_id` VARCHAR(40) NOT NULL ,
  CONSTRAINT `fk_convexhull_feature`
    FOREIGN KEY (`feature_feature_id` )
    REFERENCES `feature` (`feature_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX `fk_convexhull_feature` ON `convexhull` (`feature_feature_id` ASC);

DROP TABLE IF EXISTS `position`;
-- -----------------------------------------------------
-- Table `position`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `position` (
  `position_id` INT PRIMARY KEY NOT NULL ,
  `dim0` INT NOT NULL ,
  `dim1` INT NOT NULL ,
  `feature_feature_id` VARCHAR(40) NOT NULL ,
  CONSTRAINT `fk_position_feature1`
    FOREIGN KEY (`feature_feature_id` )
    REFERENCES `feature` (`feature_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX `fk_position_feature1` ON `position` (`feature_feature_id` ASC);

DROP TABLE IF EXISTS `userParam_names`;
-- -----------------------------------------------------
-- Table `userParam_names`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `userParam_names` (
  `userParam_id` INT PRIMARY KEY NOT NULL ,
  `Name` VARCHAR(45) NOT NULL );

DROP TABLE IF EXISTS `feature_has_userParam_names`;
-- -----------------------------------------------------
-- Table IF EXISTS `feature_has_userParam_names`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `feature_has_userParam_names` (
  `feature_feature_id` VARCHAR(40) PRIMARY KEY NOT NULL ,
  `userParam_names_userParam_id` INT NOT NULL ,
  CONSTRAINT `fk_feature_has_userParam_names_feature1`
    FOREIGN KEY (`feature_feature_id` )
    REFERENCES `feature` (`feature_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_feature_has_userParam_names_userParam_names1`
    FOREIGN KEY (`userParam_names_userParam_id` )
    REFERENCES `userParam_names` (`userParam_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX `fk_feature_has_userParam_names_userParam_names1` ON `feature_has_userParam_names` (`userParam_names_userParam_id` ASC);
  CREATE INDEX `fk_feature_has_userParam_names_feature1` ON `feature_has_userParam_names` (`feature_feature_id` ASC);

DROP TABLE IF EXISTS `userParam_value`;
-- -----------------------------------------------------
-- Table IF EXISTS `userParam_value`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `userParam_value` (
  `iduserParam_value` INT PRIMARY KEY NOT NULL ,
  `userParam_name` VARCHAR(45) NOT NULL ,
  `value` VARCHAR(45) NOT NULL );

DROP TABLE IF EXISTS `feature_has_userParam_names_has_userParam_value`;
-- -----------------------------------------------------
-- Table `feature_has_userParam_names_has_userParam_value`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `feature_has_userParam_names_has_userParam_value` (
  `feature_has_userParam_names_feature_feature_id` VARCHAR(40) PRIMARY KEY NOT NULL ,
  `feature_has_userParam_names_userParam_names_userParam_id` INT NOT NULL ,
  `userParam_value_iduserParam_value` INT NOT NULL ,
  CONSTRAINT `fk_feature_has_userParam_names_has_userParam_value_feature_ha1`
    FOREIGN KEY (`feature_has_userParam_names_feature_feature_id` , `feature_has_userParam_names_userParam_names_userParam_id` )
    REFERENCES `feature_has_userParam_names` (`feature_feature_id` , `userParam_names_userParam_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_feature_has_userParam_names_has_userParam_value_userParam_1`
    FOREIGN KEY (`userParam_value_iduserParam_value` )
    REFERENCES `userParam_value` (`iduserParam_value` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX `fk_feature_has_userParam_names_has_userParam_value_userParam_1` ON  `feature_has_userParam_names_has_userParam_value` (`userParam_value_iduserParam_value` ASC);
  CREATE INDEX `fk_feature_has_userParam_names_has_userParam_value_feature_ha1` ON  `feature_has_userParam_names_has_userParam_value` (`feature_has_userParam_names_feature_feature_id` ASC, `feature_has_userParam_names_userParam_names_userParam_id` ASC);

当我从 SQLite 管理器执行删除语句时，它确实有效。

编辑2：

完整追溯：

Traceback (most recent call last):
  File "/homes/ndeklein/workspace/MS/Trunk/PyMS_dev/database/test.py", line 25, in <module>
    cursor.execute("DELETE FROM `feature` WHERE feature_id = 'f_13020522388175237334'")
pysqlite2.dbapi2.OperationalError: foreign key mismatch

正在做

DELETE FROM `feature` WHERE feature_id = 'f_13020522388175237334'

在 SQLite 管理器中工作。

编辑 3

包括所有表格：

--------------------------------------------------------
-- pyMS database. Drops all tables before it makes them, should be changed before release
--------------------------------------------------------


DROP TABLE IF EXISTS `msrun`;
-- -----------------------------------------------------
-- Table `msrun`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `msrun` (
  `msrun_name` VARCHAR(40) PRIMARY KEY NOT NULL ,
  `description` VARCHAR(500) NOT NULL );


DROP TABLE IF EXISTS `feature`;
-- -----------------------------------------------------
-- Table `feature`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `feature` (
  `feature_id` VARCHAR(40) PRIMARY KEY NOT NULL ,
  `intensity` DOUBLE NOT NULL ,
  `overallquality` DOUBLE NOT NULL ,
  `charge` INT NOT NULL ,
  `content` VARCHAR(45) NOT NULL ,
  `msrun_msrun_name` VARCHAR(40) NOT NULL ,
  CONSTRAINT `fk_feature_msrun1`
    FOREIGN KEY (`msrun_msrun_name` )
    REFERENCES `msrun` (`msrun_name` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE UNIQUE INDEX `id_UNIQUE` ON `feature` (`feature_id` ASC);
  CREATE INDEX `fk_feature_msrun1` ON `feature` (`msrun_msrun_name` ASC);


DROP TABLE IF EXISTS `convexhull`;
-- -----------------------------------------------------
-- Table `convexhull`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `convexhull` (
  `convexhull_id` INT PRIMARY KEY NOT NULL ,
  `mz` DOUBLE NOT NULL ,
  `rt` DOUBLE NOT NULL ,
  `feature_feature_id` VARCHAR(40) NOT NULL ,
  CONSTRAINT `fk_convexhull_feature`
    FOREIGN KEY (`feature_feature_id` )
    REFERENCES `feature` (`feature_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX `fk_convexhull_feature` ON `convexhull` (`feature_feature_id` ASC);


DROP TABLE IF EXISTS `position`;
-- -----------------------------------------------------
-- Table `position`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `position` (
  `position_id` INT PRIMARY KEY NOT NULL ,
  `dim0` INT NOT NULL ,
  `dim1` INT NOT NULL ,
  `feature_feature_id` VARCHAR(40) NOT NULL ,
  CONSTRAINT `fk_position_feature1`
    FOREIGN KEY (`feature_feature_id` )
    REFERENCES `feature` (`feature_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX `fk_position_feature1` ON `position` (`feature_feature_id` ASC);


DROP TABLE IF EXISTS `userParam_names`;
-- -----------------------------------------------------
-- Table `userParam_names`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `userParam_names` (
  `userParam_id` INT PRIMARY KEY NOT NULL ,
  `Name` VARCHAR(45) NOT NULL );


DROP TABLE IF EXISTS `feature_has_userParam_names`;
-- -----------------------------------------------------
-- Table IF EXISTS `feature_has_userParam_names`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `feature_has_userParam_names` (
  `feature_feature_id` VARCHAR(40) PRIMARY KEY NOT NULL ,
  `userParam_names_userParam_id` INT NOT NULL ,
  CONSTRAINT `fk_feature_has_userParam_names_feature1`
    FOREIGN KEY (`feature_feature_id` )
    REFERENCES `feature` (`feature_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_feature_has_userParam_names_userParam_names1`
    FOREIGN KEY (`userParam_names_userParam_id` )
    REFERENCES `userParam_names` (`userParam_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX `fk_feature_has_userParam_names_userParam_names1` ON `feature_has_userParam_names` (`userParam_names_userParam_id` ASC);
  CREATE INDEX `fk_feature_has_userParam_names_feature1` ON `feature_has_userParam_names` (`feature_feature_id` ASC);


DROP TABLE IF EXISTS `userParam_value`;
-- -----------------------------------------------------
-- Table IF EXISTS `userParam_value`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `userParam_value` (
  `iduserParam_value` INT PRIMARY KEY NOT NULL ,
  `userParam_name` VARCHAR(45) NOT NULL ,
  `value` VARCHAR(45) NOT NULL );


DROP TABLE IF EXISTS `feature_has_userParam_names_has_userParam_value`;
-- -----------------------------------------------------
-- Table `feature_has_userParam_names_has_userParam_value`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `feature_has_userParam_names_has_userParam_value` (
  `feature_has_userParam_names_feature_feature_id` VARCHAR(40) PRIMARY KEY NOT NULL ,
  `feature_has_userParam_names_userParam_names_userParam_id` INT NOT NULL ,
  `userParam_value_iduserParam_value` INT NOT NULL ,
  CONSTRAINT `fk_feature_has_userParam_names_has_userParam_value_feature_ha1`
    FOREIGN KEY (`feature_has_userParam_names_feature_feature_id` , `feature_has_userParam_names_userParam_names_userParam_id` )
    REFERENCES `feature_has_userParam_names` (`feature_feature_id` , `userParam_names_userParam_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_feature_has_userParam_names_has_userParam_value_userParam_1`
    FOREIGN KEY (`userParam_value_iduserParam_value` )
    REFERENCES `userParam_value` (`iduserParam_value` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX `fk_feature_has_userParam_names_has_userParam_value_userParam_1` ON  `feature_has_userParam_names_has_userParam_value` (`userParam_value_iduserParam_value` ASC);
  CREATE INDEX `fk_feature_has_userParam_names_has_userParam_value_feature_ha1` ON  `feature_has_userParam_names_has_userParam_value` (`feature_has_userParam_names_feature_feature_id` ASC, `feature_has_userParam_names_userParam_names_userParam_id` ASC);


DROP TABLE IF EXISTS `precursor`;
-- -----------------------------------------------------
-- Table `precursor`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `precursor` (
  `precursor_id` INT PRIMARY KEY NOT NULL ,
  `ion_mz` DOUBLE NOT NULL ,
  `charge_state` INT NOT NULL ,
  `peak_intensity` DOUBLE NOT NULL );


DROP TABLE IF EXISTS `spectrum`;
-- -----------------------------------------------------
-- Table `spectrum`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `spectrum` (
  `spectrum_index` INT PRIMARY KEY NOT NULL ,
  `ms_level` INT NOT NULL ,
  `base_peak_mz` DOUBLE NOT NULL ,
  `base_peak_intensity` DOUBLE NOT NULL ,
  `total_ion_current` DOUBLE NOT NULL ,
  `lowest_observes_mz` DOUBLE NOT NULL ,
  `highest_observed_mz` DOUBLE NOT NULL ,
  `scan_start_time` DOUBLE NOT NULL ,
  `ion_injection_time` DOUBLE NOT NULL ,
  `msrun_msrun_name` VARCHAR(40) NOT NULL ,
  `precursor_precursor_id` INT NOT NULL ,
  CONSTRAINT `fk_spectrum_msrun1`
    FOREIGN KEY (`msrun_msrun_name` )
    REFERENCES `msrun` (`msrun_name` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_spectrum_precursor1`
    FOREIGN KEY (`precursor_precursor_id` )
    REFERENCES `precursor` (`precursor_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX `fk_spectrum_msrun1` ON `spectrum` (`msrun_msrun_name` ASC);
  CREATE INDEX `fk_spectrum_precursor1` ON `spectrum` (`precursor_precursor_id` ASC);


DROP TABLE IF EXISTS `spectrum_has_feature`;
-- -----------------------------------------------------
-- Table `spectrum_has_feature`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `spectrum_has_feature` (
  `spectrum_spectrum_index` INT PRIMARY KEY NOT NULL ,
  `spectrum_msrun_msrun_name` VARCHAR(40) NOT NULL ,
  `spectrum_precursor_precursor_id` INT NOT NULL ,
  `feature_feature_id` VARCHAR(40) NOT NULL ,
  `feature_msrun_msrun_name` VARCHAR(40) NOT NULL ,
  CONSTRAINT `fk_spectrum_has_feature_spectrum1`
    FOREIGN KEY (`spectrum_spectrum_index` , `spectrum_msrun_msrun_name` , `spectrum_precursor_precursor_id` )
    REFERENCES `spectrum` (`spectrum_index` , `msrun_msrun_msrun_name` , `precursor_precursor_id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_spectrum_has_feature_feature1`
    FOREIGN KEY (`feature_feature_id` , `feature_msrun_msrun_name` )
    REFERENCES `feature` (`feature_id` , `msrun_msrun_msrun_name` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX `fk_spectrum_has_feature_feature1` ON `spectrum_has_feature` (`feature_feature_id` ASC, `feature_msrun_msrun_name` ASC);
  CREATE INDEX `fk_spectrum_has_feature_spectrum1` ON `spectrum_has_feature` (`spectrum_spectrum_index` ASC, `spectrum_msrun_msrun_name` ASC, `spectrum_precursor_precursor_id` ASC);
4

2 回答 2

2

你提到它在 SQLite Manager 中工作。我也无法重现，所以我想知道 pysqlite2 的版本（或其 sqlite 版本）是否存在问题，或者代码中其他地方的一些副作用。

您可以发布 pysqlite2 及其 sqlite 的版本吗？我就是这样做的：

>>> from pysqlite2 import dbapi2 as sqlite
>>> sqlite.version
'2.3.5'
>>> sqlite.sqlite_version
'3.7.7.1'

更新

你能运行这个程序，如果你仍然得到错误，请告诉我？

#!/usr/bin/python
from pysqlite2 import dbapi2 as sqlite

conn = sqlite.connect(':memory:')
cu = conn.cursor()
cu.executescript("""
DROP TABLE IF EXISTS msrun;
CREATE  TABLE IF NOT EXISTS msrun (
  msrun_name VARCHAR(40) PRIMARY KEY NOT NULL ,
  description VARCHAR(500) NOT NULL );

DROP TABLE IF EXISTS feature;
CREATE  TABLE IF NOT EXISTS feature (
  feature_id VARCHAR(40) PRIMARY KEY NOT NULL ,
  msrun_msrun_name VARCHAR(40) NOT NULL ,
  CONSTRAINT fk_feature_msrun1
    FOREIGN KEY (msrun_msrun_name )
    REFERENCES msrun (msrun_name )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE UNIQUE INDEX id_UNIQUE ON feature (feature_id ASC);
  CREATE INDEX fk_feature_msrun1 ON feature (msrun_msrun_name ASC);

DROP TABLE IF EXISTS convexhull;
CREATE  TABLE IF NOT EXISTS convexhull (
  convexhull_id INT PRIMARY KEY NOT NULL ,
  mz DOUBLE NOT NULL ,
  rt DOUBLE NOT NULL ,
  feature_feature_id VARCHAR(40) NOT NULL ,
  CONSTRAINT fk_convexhull_feature
    FOREIGN KEY (feature_feature_id )
    REFERENCES feature (feature_id )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX fk_convexhull_feature ON convexhull (feature_feature_id ASC);

DROP TABLE IF EXISTS position;
CREATE  TABLE IF NOT EXISTS position (
  position_id INT PRIMARY KEY NOT NULL ,
  dim0 INT NOT NULL ,
  dim1 INT NOT NULL ,
  feature_feature_id VARCHAR(40) NOT NULL ,
  CONSTRAINT fk_position_feature1
    FOREIGN KEY (feature_feature_id )
    REFERENCES feature (feature_id )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX fk_position_feature1 ON position (feature_feature_id ASC);

DROP TABLE IF EXISTS userParam_names;
CREATE  TABLE IF NOT EXISTS userParam_names (
  userParam_id INT PRIMARY KEY NOT NULL ,
  Name VARCHAR(45) NOT NULL );

DROP TABLE IF EXISTS feature_has_userParam_names;
CREATE  TABLE IF NOT EXISTS feature_has_userParam_names (
  feature_feature_id VARCHAR(40) PRIMARY KEY NOT NULL ,
  userParam_names_userParam_id INT NOT NULL ,
  CONSTRAINT fk_feature_has_userParam_names_feature1
    FOREIGN KEY (feature_feature_id )
    REFERENCES feature (feature_id )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT fk_feature_has_userParam_names_userParam_names1
    FOREIGN KEY (userParam_names_userParam_id )
    REFERENCES userParam_names (userParam_id )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX fk_feature_has_userParam_names_userParam_names1 ON feature_has_userParam_names (userParam_names_userParam_id ASC);
  CREATE INDEX fk_feature_has_userParam_names_feature1 ON feature_has_userParam_names (feature_feature_id ASC);

DROP TABLE IF EXISTS userParam_value;
CREATE  TABLE IF NOT EXISTS userParam_value (
  iduserParam_value INT PRIMARY KEY NOT NULL ,
  userParam_name VARCHAR(45) NOT NULL ,
  value VARCHAR(45) NOT NULL );

DROP TABLE IF EXISTS feature_has_userParam_names_has_userParam_value;
CREATE  TABLE IF NOT EXISTS feature_has_userParam_names_has_userParam_value (
  feature_has_userParam_names_feature_feature_id VARCHAR(40) PRIMARY KEY NOT NULL ,
  feature_has_userParam_names_userParam_names_userParam_id INT NOT NULL ,
  userParam_value_iduserParam_value INT NOT NULL ,
  CONSTRAINT fk_feature_has_userParam_names_has_userParam_value_feature_ha1
    FOREIGN KEY (feature_has_userParam_names_feature_feature_id , feature_has_userParam_names_userParam_names_userParam_id )
    REFERENCES feature_has_userParam_names (feature_feature_id , userParam_names_userParam_id )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT fk_feature_has_userParam_names_has_userParam_value_userParam_1
    FOREIGN KEY (userParam_value_iduserParam_value )
    REFERENCES userParam_value (iduserParam_value )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

  CREATE INDEX fk_feature_has_userParam_names_has_userParam_value_userParam_1 ON  feature_has_userParam_names_has_userParam_value (userParam_value_iduserParam_value ASC);
  CREATE INDEX fk_feature_has_userParam_names_has_userParam_value_feature_ha1 ON  feature_has_userParam_names_has_userParam_value (feature_has_userParam_names_feature_feature_id ASC, feature_has_userParam_names_userParam_names_userParam_id ASC);
""")

conn.commit()
cu.execute("PRAGMA foreign_keys=ON")
cu.execute("INSERT INTO msrun VALUES (?,?)", ('bar', 'bar'))
cu.execute("INSERT INTO feature VALUES (?,?)", ('foo','bar'))
cu.execute("INSERT INTO feature VALUES (?,?)", ('foo1','bar'))
conn.commit()

cu.execute("SELECT * FROM feature")
print(cu.fetchall())

cu.execute("DELETE FROM feature WHERE feature_id=?", ("foo", ))
cu.execute("DELETE FROM feature WHERE feature_id=?", (str("foo1"), ))
conn.commit()

cu.execute("SELECT * FROM feature")
print(cu.fetchall())

更新 2

根据您发布的架构，您没有收到任何错误的事实应排除features表及其依赖项存在任何问题。根据sqlite docs，我现在假设您有一些其他外键来自/到features您未包含的表的任何后代/上升对象（例如，您未提及的某些表取决于您提到的某些表，这取决于features）。

以下是关于外键的 sqlite 文档的一部分，让我相信：

如果数据库模式包含需要查看多个表定义来识别的外键错误，则在创建表时不会检测到这些错误。相反，此类错误会阻止应用程序准备 SQL 语句，这些语句以使用外键的方式修改子表或父表的内容。更改内容时报告的错误是“DML 错误”，更改架构时报告的错误是“DDL​​ 错误”。因此，换句话说，需要同时查看子项和父项的错误配置的外键约束是 DML 错误。外键 DML 错误的英文错误消息通常是“外键不匹配”，但如果父表不存在，也可以是“没有这样的表”。

如果您没有注意到，您得到的错误与关于 FK 违规的错误不同：

pysqlite2.dbapi2.IntegrityError: foreign key constraint failed

更新 3

您的问题在于spectrum_has_feature引用不存在的字段的FK feature：

CREATE  TABLE IF NOT EXISTS spectrum_has_feature (
<...>
FOREIGN KEY (feature_feature_id , feature_msrun_msrun_name )
REFERENCES feature (
    feature_id , 
    msrun_msrun_msrun_name ) -- <<< shouldn't this be msrun_msrun_name?
<...>
于 2012-04-13T09:30:51.597 回答
0

我更新到Django==2.0. 我需要的修复只是删除我编写的所有迁移Django==1.11.6并运行一个新makemigrations的2.0. 当然，如果我有任何托管我的应用程序的数据库需要维护迁移文件，我就无法做到这一点

于 2017-12-05T15:54:50.867 回答