Here’s how to use the commit() function.
Description:
Commit the database transaction manually.
Syntax:
db.commit()
Note:
The function commits the transaction manually, which is the same as commit() of the Connection class in Java.
Parameter:
|
db |
Data source connection. |
Option:
|
@k |
After the execution is completed, the transaction won't be committed. If this option is omitted, the transaction will be committed. |
Example:
|
|
A |
B |
|
|
1 |
=create(ID,NAME,GENDER,AGE).record([3, "AAA","F",14]) |
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|
|
2 |
=connect@e("demo") |
|
Create the connection and automatically control the commit and rollback operations through @e option. |
|
3 |
>A2.execute@k(A1,"update STUDENTS2 set NAME=?,GENDER=?,AGE=? where ID=?",NAME,GENDER,AGE,ID) |
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Execute the sql statement and update table STYDENTS2 according to A1’s records, during which @k option is used to not to commit the transaction. |
|
4 |
=A2.error() |
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Read the error code generated by the execution of the previous sql. |
|
5 |
if A4==0 |
>A2.commit() |
Commit if there isn’t an error. |
|
6 |
else |
>A2.rollback() |
Roll back if there is an error. |
|
7 |
>A2.close() |
|
Close the connection. |
Related function: