I have a large data 40GB SQL DB that I would like to delete all the data from all the tables, hence my questions: How does one delete data from an SQL Database and Maintaining Referential Integrity+constraints?
How does one delete data from an SQL Database and Maintaining Referential Integrity+constraints?
107 views Asked by joseph munji At
1
There are 1 answers
Related Questions in SQL
- How to read a characteristic (e.g. in WICED Smart example "speed_test")
- Android Wear Device as iBeacon
- How to get MAC Address of beacon when ranging and monitoring in iOS
- android - How to get a iBecon detection state when I kill app from Background?
- How to use core bluetooth framework to connect Headsets/handsfree?
- Android : auto connect to heartrate sensor ble
- bluetoothGatt writeCharacteristic returns false
- Android's BLE Service Discovery (BluetoothGatt#discoverServices()) and Low Energy vs BR/EDR
- How deploy an large number iBeacons
- Send a Android BLE GATT Notification
Related Questions in CONSTRAINTS
- How to read a characteristic (e.g. in WICED Smart example "speed_test")
- Android Wear Device as iBeacon
- How to get MAC Address of beacon when ranging and monitoring in iOS
- android - How to get a iBecon detection state when I kill app from Background?
- How to use core bluetooth framework to connect Headsets/handsfree?
- Android : auto connect to heartrate sensor ble
- bluetoothGatt writeCharacteristic returns false
- Android's BLE Service Discovery (BluetoothGatt#discoverServices()) and Low Energy vs BR/EDR
- How deploy an large number iBeacons
- Send a Android BLE GATT Notification
Related Questions in INTEGRITY
- How to read a characteristic (e.g. in WICED Smart example "speed_test")
- Android Wear Device as iBeacon
- How to get MAC Address of beacon when ranging and monitoring in iOS
- android - How to get a iBecon detection state when I kill app from Background?
- How to use core bluetooth framework to connect Headsets/handsfree?
- Android : auto connect to heartrate sensor ble
- bluetoothGatt writeCharacteristic returns false
- Android's BLE Service Discovery (BluetoothGatt#discoverServices()) and Low Energy vs BR/EDR
- How deploy an large number iBeacons
- Send a Android BLE GATT Notification
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
It depends.
If you want to delete all the data from all the tables you are better off disabling the constraints, truncating the tables, and then re-enabling the constraints.
If you are just deleting some records you need to delete the child records first and then the parents as @dan-bracuk said. Alternatively if you have cascading delete set up you can start at the parent.
If you are deleting many, many records you may still be better off disabling the constraints if you can limit other activity on the tables for the duration.
If you are replicating the tables then you may have some other considerations.