MySQL - Execute

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Snap type:



This Snap allows you to execute arbitrary SQL.

You can drop your database with it, so be careful.

Valid JSON paths that are defined in the where clause for queries/statements will be substituted with values from an incoming document. Documents will be written to the error view if the document is missing a value to be substituted into the query/statement.
If a select query is executed, the query's results are merged into the incoming document and any existing keys will have their values overwritten. On the other hand, the original document is written if there are no results from the query.

The MySQL Execute Snap is for simple DML (SELECT, INSERT, UPDATE, DELETE) type statements. For the comprehensive scripting functionality offered by the various databases, users should use stored procedure functionality offered by their chosen database in the Stored Procedure Snap. 




Works in Ultra Task Pipelines.


We recommend you to use the MySQL - Stored Procedure Snap for invoking procedures as the My SQL Execute Snap cannot invoke procedures. 
To invoke procedures that contain OUT parameters, you must use two MySQL Execute Snaps—one for invoking the procedure and the other for printing the OUT parameters as shown below.


This Snap uses account references created on the Accounts page of SnapLogic Manager to handle access to this endpoint. See MySQL Account for information on setting up this type of account.

InputThis Snap has at most one document input view. If the input view is defined, then the where clause can substitute incoming values for a given expression.
OutputThis Snap has at most one document output view. If an output view is available and an update/insert/merge/delete statement was executed, then the original document that was used to create the statement will be output with the status of the statement executed.

This Snap has at most one document error view and produces zero or more documents in the view.

Database Write Snaps output all records of a batch (as configured in your account settings) to the error view if the write fails during batch processing.



Required. The name for the Snap. You can modify this to be more specific, especially if you have more than one of the same Snap in your pipeline.

SQL statement

Required. Specifies the SQL statement to execute on the server. 

There are two possible scenarios that you encounter when working with SQL statements in SnapLogic. You must understand the following scenarios to successfully execute your SQL statements:

Scenario 1: Executing SQL statements without expressions
If the expression toggle of the SQL statement field is not selected: 

  • The SQL statement must not be within quotes. 
  • The $<variable_name> parts of the SQL statement are expressions. In the below example, $id and $book.


Additionally, the JSON path is allowed only in the WHERE clause. If the SQL statement starts with SELECT (case-insensitive), the Snap regards it as a select-type query and executes once per input document. If not, it regards it as a write-type query and executes in batch mode.

Scenario 2: Executing SQL queries with expressions 
If the expression toggle of the SQL statement field is selected: 

  • The SQL statement must be within quotes. 
  • The + $<variable_name> + parts of the SQL statement are expressions, and must not be within quotes. In the below example, $tablename.
  • The $<variable_name> parts of the SQL statement are bind parameter and must be within quotes. In the below example, $id and $book.

Table name and column names must not be provided as bind parameters. Only values can be provided as bind parameters.


  • "emp='" + $emp + "'"
  • "EMPNO=" + $EMPNO + " and ENAME='" + $EMPNAME+ "'"

When the SQL statement property is an expression, the pipeline parameters are shown in the suggest, but not the input schema.

  • The non-expression form uses bind parameters, so it is much faster than executing N arbitrary SQL expressions.
  • Using expressions that join strings together to create SQL queries or conditions has a potential SQL injection risk and hence unsafe. Ensure that you understand all implications and risks involved before using the concatenation of strings with '=' Expression enabled.
  • The '$' sign and identifier characters, such as double quotes (“), single quotes ('), or back quotes (`), are reserved characters and should not be used in comments or for purposes other than their originally intended purpose.

Single quotes in values must be escaped

Any relational database (RDBMS) treats single quotes (') as special symbols. So, single quotes in the data or values passed through a DML query may cause the Snap to fail when the query is executed using MySQL. Ensure that you pass two consecutive single quotes ('') or a single quote preceded by a backslash (\') in place of each single quote within these values to escape it through these queries.

For example:

If String To pass this valueUse
Has no single quotes
Schaum Series
'Schaum Series'
Contains single quotes
O'Reilly's Publication
'O''Reilly''s Publication' OR
'O\'Reilly\'s Publication'

 Default value: [None]

Pass through

If selected, the input document will be passed through to the output view under the key 'original'. This property applies only to the Execute Snaps with SELECT statement.

Default value: Selected 

Ignore empty result

If selected, no document will be written to the output view when a SELECT operation does not produce any result. If this property is not selected and the Pass through property is selected, the input document will be passed through to the output view.

Default value: Not selected

Auto commit

Select one of the options for this property to override the state of the Auto commit property on the account. The Auto commit at the Snap-level has three values: TrueFalse, and Use account setting. The expected functionality for these modes are:

  •  True - The Snap will execute with auto-commit enabled regardless of the value set for Auto commit in the Account used by the Snap.
  •  False - The Snap will execute with auto-commit disabled regardless of the value set for Auto commit in the Account used by the Snap.
  • Use account setting - The Snap will execute with Auto commit property value inherited by the Account used by the Snap.

Default value: Use account setting

You can enable the Auto commit for certain use cases if JDBC driver is used in MySQL Snaps. But the JDBC driver may cause out of memory issues when Select statements are executed. In such cases, Auto commit in Snap property should be set to False and the Fetch size in the Account setting can be increased for optimal performance.

Behavior of DML Queries in Database Execute Snap when auto-commit is false

DDL queries used in the Database Execute Snap will be committed by the Database itself, regardless of the Auto-commit setting.
When Auto commit is set to false for the DML queries, the commit will be called only at the end of the pipeline lifecycle.
Instead of building multiple Snaps with inter-dependent DML queries, it is recommended to use Stored Procedure and Multi Execute Snap.
The Auto commit needs to be true in a scenario where the downstream Snap does depend on the data processed on an Upstream Database Execute Snap containing a DML query.
When the Auto commit is set to the Use account setting on the Snap, the account level commit needs to be enabled.
Number of retries

Specifies the maximum number of attempts to be made to receive a response. The request is terminated if the attempts do not result in a response.

Example: 3

Default value: 0

Retry interval (seconds)

Specifies the time interval between two successive retry requests. A retry happens only when the previous attempt resulted in an exception. 

Example:  10

Default value: 1

Snap Execution

Select one of the three modes in which the Snap executes. Available options are:

  • Validate & Execute: Performs limited execution of the Snap, and generates a data preview during Pipeline validation. Subsequently, performs full execution of the Snap (unlimited records) during Pipeline runtime.
  • Execute only: Performs full execution of the Snap during Pipeline execution without generating preview data.
  • Disabled: Disables the Snap and all Snaps that are downstream from it.


In this pipeline, the MySQL Execute Snap creates a table pqadb.TAM_SAMPLE_PERSONS_2, with the required field names and the data type. The Snap settings and the output preview after the pipeline execution is as displayed below:

Snap Pack History

 Click to view/expand
Release Snap Pack VersionDateType  Updates
August 2022main17386 StableUpgraded with the latest SnapLogic Platform release.





Upgraded with the latest SnapLogic Platform release.

4.28 Patch



Fixed an issue with SQL Server - Execute Snap where the Pipeline was failing when there were consecutive execute Snaps with a procedure call, followed by select statements.

4.28main14627 StableUpdated the label for Delete Condition to Delete Condition (Truncates Table if empty) in the MySQL Delete Snap.
4.27main12833 Stable
  • Enhanced the MySQL Database Account to skip batch execution, when the Batch size value is one. When the Batch size is greater than one, the batch is executed.
  • Enhanced the MySQL - Execute Snap to invoke stored procedures.
4.26main11181 StableUpgraded with the latest SnapLogic Platform release.
4.25425patches11008 Latest
  • Enhanced the MySQL - Lookup Snap suggestions to load the Output Fields and Lookup Column settings.
  • Fixed an issue with MySQL - Select Snap where the second output view of the Snap was showing empty column values and improved the error messages in the Snap where the Snap fails with Null Pointer Exception when the account reference provided is invalid.
StableUpgraded with the latest SnapLogic Platform release.
  • Enhances the MySQL - Select Snap to return only the fields (provided in the Output Fields) in the output schema (second output view), through a new check box Fetch Output Fields In Schema. If the Output Fields property is empty all the columns are visible.
  • Enhances the MySQL - Stored Procedure to accept parameters from input documents by column keys. If the values are empty, the parameters are populated based on the column keys for easier mapping in the upstream Mapper Snap.
4.23 Patch423patches7732 Latest

Fixes an issue in the MySQL - Bulk Load Snap to support the following versions:

  • MySQL 8.0.17 
  • MySQL 5.6.34
StableUpgraded with the latest SnapLogic Platform release.
4.22 Patch422patches6629 Latest

Fixes the MySQL Snap Pack by acknowledging the lineage information of the original document in an empty output view when Pass Through is enabled. 

StableUpgraded with the latest SnapLogic Platform release.
4.21 Patch421patches6272 Latest

Fixes the issue where Snowflake SCD2 Snap generates two output documents despite no changes to Cause-historization fields with DATE, TIME and TIMESTAMP Snowflake data types, and with Ignore unchanged rows field selected.

4.21 Patch421patches6144 Latest

Fixes the following issues with DB Snaps:

  • The connection thread waits indefinitely causing the subsequent connection requests to become unresponsive.
  • Connection leaks occur during Pipeline execution.
4.21 Patch
mysql8842 Latest
  • Fixes the SSH tunneling issue by ensuring connectivity between JCC and MySQL server.

  • Updates the UI for MySQL Accounts to simplify the SSH tunneling configuration as described in Configuring MySQL Accounts.

4.21 PatchMULTIPLE8841 Latest

Fixes the connection issue in Database Snaps by detecting and closing open connections after the Snap execution ends.



StableUpgraded with the latest SnapLogic Platform release.

4.20 Patch 

db/mysql8815 Latest

Fixes the MySQL Stored Procedure Snap to resolve compatibility issues with the Amazon Aurora database.

4.20 Patch 

db/mysql8786 Latest

Fixes the MySQL - Bulk Load Snap to use the UTF-8 character set for writing temporary files in order to successfully handle special characters, irrespective of the value specified in the Character set field in the Snap settings.  

StableUpgraded with the latest SnapLogic Platform release.
4.19 Patch db/mysql8638 Latest

Fixes the MySQL Database Account where the associated Snaps produce a huge count of open file descriptors when the Configure SSH Tunnel property is enabled.

4.19 Patch 

db/mysql8635 Latest

Fixes the MySQL - Execute Snap where the retry option fails to establish a connection with the MySQL database, after an interrupted transmission.

4.19 Patch 

db/mysql8407 Latest

Fixes an issue with the MySQL - Update Snap wherein the Snap is unable to perform operations when:

  • An expression is used in the Update condition property.
  • Input data contain the character '?'.

4.19 Patch 

db/mysql8390 Latest

Fixes an issue wherein the MySQL Snaps are unable to reconnect to the MySQL database after the breakdown of a connection.

4.19 Patch 

db/mysql8340 Latest

Fixes an issue with the MySQL Bulk Load Snap wherein the Snap is unable to execute the bulk load feature with MySQL 8.0 and higher versions.

StableUpgraded with the latest SnapLogic Platform release.
4.18 Patch db/mysql7846 Latest

Fixed an issue with the MySQL Snaps wherein the Snaps exhibit degraded performance with snapsmrc523.


Reverted a 4.17-patch (db/mysql7395) update regarding how BIT and BOOLEAN column data type values are displayed. They now display as true or false (4.17GA behavior in snapsmrc515) rather than converting to 0 or 1 values (4.17-patch behavior).

4.17 Patch db/mysql7395 Latest

Fixed an issue wherein bit data types in the MySQL - Select table convert to true or false instead of 0 or 1.

4.17 Patch db/mysql7357 Latest

Fixed an issue with the MySQL Execute snap wherein the Retry property for connection fails after the database connection is severed.


Pushed automatic rebuild of the latest version of each Snap Pack to SnapLogic UAT and Elastic servers.

  • Fixed an issue with the MySQL Execute Snap wherein the Snap would send the input document to the output view even if the Pass through field is not selected in the Snap configuration. With this fix, the Snap sends the input document to the output view, under the key original, only if you select the Pass through field.
  • Added the Snap Execution field to all Standard-mode Snaps. In some Snaps, this field replaces the existing Execute during preview check box.
4.16 PatchMULTIPLE7123 Latest

Added two new properties, Number of retries and Retry interval, to Delete, Insert, Select, Execute, Merge, Update, and MutliExecute Snaps that enables you to handle retry attempts during a connection failure.

4.16 Patch db/mysql6823 Latest

Fixed an issue with the Lookup Snap passing data simultaneously to output and error views when some values contained spaces at the end.

StableUpgraded with the latest SnapLogic Platform release.
4.15 PatchMULTIPLE6413 Latest

Added 2 new properties, JDBC Driver Class and JDBC JARs. The new properties enable uploading JDBC JARs that help connect to MYSQL8.

4.15 Patch db/mysql6332 Latest

Replaced Max idle time and Idle connection test period properties with Max life time and Idle Timeout properties respectively, in the Account configuration. The new properties fix the connection release issues that were occurring due to default/restricted DB Account settings.

StableUpgraded with the latest SnapLogic Platform release.
StableUpgraded with the latest SnapLogic Platform release.


StableUpgraded with the latest SnapLogic Platform release.
4.12 Patch db/mysql4924 Latest

Fixed the MySQL Bulk Load Snap so that it doesn't produce an output document if there are no input documents.



StableUpgraded with the latest SnapLogic Platform release.
  • New! MySQL Stored Procedure Snap added to call/execute MySQL Stored Procedure.
  • SSH Tunnelling related properties added at the Account level for both MySQL Dynamic Account and MySQL Database Account.
4.10 Patchmysql3988 Latest

SSH Tunnelling related properties added at the Account level for both MySQL Dynamic Account and MySQL Database Account.




Added Auto commit property to the Select and Execute Snaps at the Snap level to support overriding of the Auto commit property at the Account level.

4.9.0 Patch

mysql3070 Latest

Fixed an issue regarding connection not closed after login failure; Expose autocommit for "Select into" statement in PostgreSQL Execute Snap and Redshift Execute Snap

StableUpgraded with the latest SnapLogic Platform release.
4.8.0 Patchmysql2755 Latest

Potential fix for JDBC deadlock issue.

4.8.0 Patch

mysql2695 Latest

Addresses an issue where some changes made in the platform patch MRC294 to improve perfomance caused Snaps in the listed Snap Packs to fail. 



  • Info tab added to accounts.
  • Database accounts now invalidate connection pools if account properties are modified and login attempts fail.

4.7.0 Patch

mysql2189 Latest

Fixed an issue for database Select Snaps regarding Limit rows not supporting an empty string from a pipeline parameter.

4.7.0 Patch



MySQL Merge will now route documents to the output and error views correctly




Added a new Snap, MySQL Bulk Load.

  • Enhanced MySQL Execute Snap to fully support SQL statements with/without expressions & SQL bind variables.
  • Extended support for MySQL Dynamic accounts.
  • Resolved an issue in MySQL Select Snap that caused failures in the second output view when retrieving outputs from a table with a dot (.) character.
  • Resolved an issue in MySQL Execute Snap that caused failures when passing expression ($variable_name) for stored procedures.
  • Resolved an issue in MySQL Execute Snap that caused failures when an SQL statement had an inline comment.
  • Resolved an issue in MySQL Execute Snap that ignored all statements after "–".



Fixed an error in a tooltip for MySQL - Select Snap.




Resolved an issue in MySQL Insert Snap to ensure an error is reported when table column is set to NOT NULL.

4.4.1NA StableUpgraded with the latest SnapLogic Platform release.
4.4NA StableUpgraded with the latest SnapLogic Platform release.
4.3.2NA Stable
  • NEW! MySQL Lookup Snap
  • Improved performance of the MySQL Execute Snap.

Table List Snap: A new option, Compute table graph, now lets you determine whether or not to generate dependents data into the output.


  • Ignore empty result added to Execute and Select Snaps. The option will not write any document to the output view for select statements producing no results.
  • Resolved a Java exception in MySQL Merge Snap.