We are updating a field in sql and alter


05-Aug-2020 23:10

The basic syntax of the UPDATE query with a WHERE clause is as follows − ---- ---------- ----- ----------- ---------- | ID | NAME | AGE | ADDRESS | SALARY | ---- ---------- ----- ----------- ---------- | 1 | Ramesh | 32 | Ahmedabad | 2000.00 | | 2 | Khilan | 25 | Delhi | 1500.00 | | 3 | kaushik | 23 | Kota | 2000.00 | | 4 | Chaitali | 25 | Mumbai | 6500.00 | | 5 | Hardik | 27 | Bhopal | 8500.00 | | 6 | Komal | 22 | MP | 4500.00 | | 7 | Muffy | 24 | Indore | 10000.00 | ---- ---------- ----- ----------- ---------- ---- ---------- ----- ----------- ---------- | ID | NAME | AGE | ADDRESS | SALARY | ---- ---------- ----- ----------- ---------- | 1 | Ramesh | 32 | Ahmedabad | 2000.00 | | 2 | Khilan | 25 | Delhi | 1500.00 | | 3 | kaushik | 23 | Kota | 2000.00 | | 4 | Chaitali | 25 | Mumbai | 6500.00 | | 5 | Hardik | 27 | Bhopal | 8500.00 | | 6 | Komal | 22 | Pune | 4500.00 | | 7 | Muffy | 24 | Indore | 10000.00 | ---- ---------- ----- ----------- ---------- If you want to modify all the ADDRESS and the SALARY column values in the CUSTOMERS table, you do not need to use the WHERE clause as the UPDATE query would be enough as shown in the following code block. If you omit the WHERE clause, all records in the table will be updated!

Now, we are ready to dive into the UPDATE statement. By using this code structure, SQL will change the record or records satisfying the WHERE condition, updating the old values of the columns listed with the new ones.

The WHERE clause specifies which record(s) that should be updated.

Before reading this post you may want to get familiar with our post about SQL INSERT Statement.

statement can be accomplished in one of two ways, primarily depending upon which version of SQL Server you are using.

we are updating a field in sql and alter-50

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We’ll briefly explore both options so you can find what works best for you.

If you don’t provide a WHERE condition, all rows of the table will be updated.