MySQL Insert

Use this activity to execute an SQL Insert to insert the records into the Oracle MySQL database.

Configuration

The Configuration tab has the following fields.

Field Description
Connection Name of the Oracle MySQL database connection from which to retrieve information. You can select a connection from the drop-down list.

Input Settings

The Input Settings tab has the following fields:

Field Description
Insert Statement An SQL statement used to insert a record in the table. You can construct prepared SQL queries by using substitution variables (or parameters) of the form ?<fieldname> in the insert query statement.
Each substitution variable identifies an input parameter whose mapped value is substituted into the substitution variable at runtime. You can reuse the substitution variable for the same input parameter elsewhere in the query. The type information for the input parameters used in the VALUES clause, is fetched from the database using the selected connection for the entered insert query. Similarly, input fields on the Input tab of the activity are also populated based on the SQL Insert statement.
Note: Be sure to include the semicolon (;) at the end of the query. This activity expects an insert query to end with a semicolon to indicate the end of the query. A missing semicolon at the end of the query results in the query hanging.
Note: When substitution variables used in the VALUES clause are identical to the column names in the table, those variables are displayed under the Values array on the Input tab.

The following example represents a typical insert query: 

INSERT INTO ADVISOR (s_id, i_id) VALUES (?s_id, ?i_id);
For the above insert query, there will not be any output field, and input field is generated for s_id (VARCHAR) and i_id(VARCHAR) under Values[] node as its part of the values clause. Also, the mapped value for the field price and name is substituted into the substitution variable ?s_id and ?i_id.

It is also possible to enter multi-row queries. For example:

INSERT INTO products (product_no, name, price) VALUES (1, 'Cheese', 9.99), (2, 'Bread', 1.99), (3, 'Milk', 2.99)

Value substitution variables can also be used in multi-row values. For example:

INSERT INTO products VALUES (1, 'Cheese', ?price), (2, 'Bread', ?price), (3, 'Milk', ?price)

If multi-row values are used, it is important to note the following points:

  1. A value substitution variable must appear in all the rows at the same position. You cannot have some rows with the value variable and other rows without it.
  2. If the value row is mapped to the output values from previous activities, then the output data from the previous activity must contain the same number of records as there are rows entered in the insert query definition.
  3. For multiple record insertion, mixing of value substitution variables and parameter substitution variables in each record entry is not recommended. Either they must all be value substitution variables or they must be all parameter substitution variables. They should not be a combination of both. For example, the following use is discouraged: 
    INSERT INTO products (ProductNo, Name, Price) 
VALUES (?ProductNo, ?Name, ?Price), (?myproduct, ?myname, ?myprice);
Manually Configure Metadata

If you see an error for a valid SQL statement in the Query field, set the Manually Configure Metadata field to True to fetch table metadata manually using simple SELECT statement. For more information, see Manually Configuring Metadata.

Fields Displays the database column metadata.

Input

This tab displays the input schema of the activity in a tree structure format. The information in the schema varies based on the insert query provided. Substitution parameters in the query which exactly match column names are presented in the Values node and substitutions which do not match appear in the Parameters node.

Output

This tab displays the output schema of the activity in a tree structure format. The output tab displays rowsAffected and lastInsertId. rowsAffected equals the number of rows inserted and lastInsertId is set to the id of the last server generated unique key value if the table is defined that way, otherwise -1.

Related concepts
Related reference