Learn how to use the UPDATE command to modify the values of rows that exist in your database tables.
- [Instructor] In addition to the insert and delete…DML commands we saw earlier in our chapter which allows…us to insert and delete records from our table.…We can also use the DML update command to modify values…of specific columns for specific rows in our database.…So let's see the DML update command in action.…We'll start by selecting all rows from our test table.…So I'll type select star from test table one…and execute the command.…
As we see we have two records in our table at the moment.…Both records have a value of test row for column one…and different values off eleven and twelve for column two.…So let's say we want to update only the first row.…The row where column two has a value of eleven.…In order to accomplish that all we have to do is type…update, test table, one, which is the table name, set,…col one, which is the first column name, equals,…and specify a value such as updated value where…and specify the condition.…
Column two, which is the name of my second column,…equals eleven.…So this command essentially tells Oracle to update…
Note: This training course is appropriate for beginning database developers with no prior experience with SQL or Oracle.
- Using Oracle SQL*Developer, the free development environment
- Selecting data from tables
- Filtering data
- Using functions to manipulate data
- Joining data from tables
- Creating tables
- Updating values
- Truncating data
- Grouping and ordering result sets
- Working with primary keys
- Checking constraints
Skill Level Beginner
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1. Introduction to SQL
2. Preparing the Course Environment
Downloading the course VM2m 16s
3. Using Oracle SQL Developer
4. Basic SELECT Queries
5. String, Number, and Date Functions
6. Joining Table Data
7. Manipulating Data
8. Grouping Data
9. Advanced Topics
Next steps1m 33s
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