JSON.UpdateRecord
-----------------

Update an existing record in a table in one line using JSON.

| Component | Version | macOS | Windows | Linux | Server | iOS SDK |
|---|---|---|---|---|---|---|
| [JSON](component_JSON.md) | [14.4](newinversion144.md) | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |

MBS( "JSON.UpdateRecord"; FileName; TableName; PrimaryKeys; Values ) 

**MBS**( **"JSON.UpdateRecord";** /\* Update an existing record in a table in one line using JSON. \*/  
**$FileName**; /\* The file name of where the table is inside. Can be empty to look for the table in all files.  
  
Using a table in another database file may require you adding the other file as an external data source and adding the external table to your relationship graph to grant access.e.g. Get(FileName) \*/   
**$TableName**; /\* The name of the table to insert record into.  
Can be ID of table, so we lookup name by ID.   
Can be result of GetFieldName() function as we remove field name automatically.e.g. "Assets" \*/   
**$PrimaryKeys**; /\* The JSON with keys and values which provides an unique ID for each record, so we can identify the field.  
Can be ROWID for the record ID.  
  
Field name can be the result of GetFieldName() function as we remove table name automatically. If field name is a number with field ID, so we lookup name by ID.e.g. "ID" \*/   
**$Values**) /\* The JSON object with the record. \*/ 

### Parameters

| Parameter | Description | Example |
|---|---|---|
| FileName | The file name of where the table is inside. Can be empty to look for the table in all files.      Using a table in another database file may require you adding the other file as an external data source and adding the external table to your relationship graph to grant access. | Get(FileName) |
| TableName | The name of the table to insert record into.   Can be ID of table, so we lookup name by ID.    Can be result of GetFieldName() function as we remove field name automatically. | "Assets" |
| PrimaryKeys | The JSON with keys and values which provides an unique ID for each record, so we can identify the field.   Can be ROWID for the record ID.      Field name can be the result of GetFieldName() function as we remove table name automatically. If field name is a number with field ID, so we lookup name by ID. | "ID" |
| Values | The JSON object with the record. |  |

### Result

Returns OK or error.

### Description

Update an existing record in a table in one line using JSON.  
You pass to this function table name (and optional filename).  
To identify the record you pass the name of the ID field and the value for the record. The ID field must be unique.  
Then you pass a JSON with pairs of field names and values for each field you like to change in the record.  
  
Please note that JSON.UpdateRecord and [JSON.UpdateRecords](JSONUpdateRecords.md) are nearly identical. Just JSON.UpdateRecord provides the check to make sure only one record matches while [JSON.UpdateRecords](JSONUpdateRecords.md) allows several records to be updated. So with [JSON.UpdateRecords](JSONUpdateRecords.md) you can easily erase a lot of data if you pass wrong ID!  
  
You can specify fields and table via IDs and the plugin will lookup them for you at runtime. Table IDs and table names must be unique across all open files for this to work correctly.  
  
You can use GetFieldName() function to query field names and the plugin removes the table prefix with :: in the field name before passing it to SQL engine.  
  
You can use [FM.ExecuteSQL.LastSQL](FMExecuteSQLLastSQL.md) function to see later what SQL was created and run.  
The [SQL](component_SQL.md) functions in FileMaker do not trigger OnWindowsTransaction script trigger.  
  
If the record is locked, you get an error like this: \[MBS\] ERROR: (301): Record is locked by another user.  
Your script may then wait and try again later.  
  
Does not take part in transactions in FileMaker. Changes are made directly to the database, so you can't revert them later with Revert Transaction script step.  
  
We auto convert text values to date, time or timestamp if the plugin sees the fields having such a type. Otherwise the type of JSON value defines the data type. If JSON contains an array or object, we make text from it.  
### Examples

Update a record with JSON:

 MBS ("JSON.UpdateRecord"; ""; "Contacts"; "{\\"PrimaryKey\\": " &amp; Contacts::PrimaryKey &amp; "}"; "{\\"FirstName\\": \\"John\\", \\"TheNumber\\": 125}")  
Update a record and build JSON on the fly:

 MBS ("JSON.UpdateRecord"; ""; "Contacts";   
JSONSetElement ( "{}" ;   
 GetFieldName ( Contacts::PrimaryKey ) ; Contacts::PrimaryKey ; JSONString );   
JSONSetElement (   
 JSONSetElement ( "{}" ;   
 GetFieldName ( Contacts::FirstName ); "John"; JSONString);   
 GetFieldName ( Contacts::TheNumber ); 134; JSONNumber)  
)  
### See also

- [FM.UpdateRecord](FMUpdateRecord.md)
- [FM.UpdateRecord2](FMUpdateRecord2.md)
- [FM.UpdateRecord3](FMUpdateRecord3.md)
- [FM.UpdateRecord4](FMUpdateRecord4.md)
- [FM.UpdateRecord5](FMUpdateRecord5.md)
- [FM.UpdateRecords2](FMUpdateRecords2.md)
- [FM.UpdateRecords3](FMUpdateRecords3.md)
- [FM.UpdateRecords4](FMUpdateRecords4.md)
- [FM.UpdateRecords5](FMUpdateRecords5.md)
- [JSON.UpdateRecords](JSONUpdateRecords.md)

### Release notes

- **Version 15.3**
    - Enhanced [JSON.UpdateRecords](https://www.mbsplugins.eu/JSONUpdateRecords.shtml) to take keys as JSON array, so you can update multiple records with different primary keys.
- **Version 14.4**
    - Added [JSON.UpdateRecord](https://www.mbsplugins.eu/JSONUpdateRecord.shtml) and [JSON.UpdateRecords](https://www.mbsplugins.eu/JSONUpdateRecords.shtml) functions.

### Example Databases

- [JSON/JSON Insert and Update](https://www.mbsplugins.eu/MBS-FileMaker-Plugin-Examples/JSON/JSON%20Insert%20and%20Update.shtml#2ScriptAnchor_)

### Blog Entries

- [New in MBS FileMaker Plugin 14.4](https://www.mbsplugins.de/archive/2024-09-24/New_in_MBS_FileMaker_Plugin_14/monkeybreadsoftware_blog_filemaker)
- [Neues MBS Plugin 14.4 für Claris FileMaker](https://www.mbsplugins.de/archive/2024-09-17/Neues_MBS_Plugin_144_für_Clar/monkeybreadsoftware_blog_filemaker)
- [MBS Plugin 14.4 for Claris FileMaker](https://www.mbsplugins.de/archive/2024-09-17/MBS_Plugin_144_for_Claris_File/monkeybreadsoftware_blog_filemaker)
- [Insert or update with JSON](https://www.mbsplugins.de/archive/2024-08-28/Insert_or_update_with_JSON/monkeybreadsoftware_blog_filemaker)
- [MBS FileMaker Plugin, version 14.4pr4](https://www.mbsplugins.de/archive/2024-08-26/MBS_FileMaker_Plugin_version_1/monkeybreadsoftware_blog_filemaker)
- [MBS FileMaker Plugin, version 14.4pr3](https://www.mbsplugins.de/archive/2024-08-21/MBS_FileMaker_Plugin_version_1/monkeybreadsoftware_blog_filemaker)

This function checks for a license.

Created 20th August 2024 , last changed 14th October 2024

  
[JSON.Unflatten](JSONUnflatten.md) - [JSON.UpdateRecords](JSONUpdateRecords.md)

[HTML Version](JSONUpdateRecord.shtml)