Search results for: "WHERE clause"

What are the potential issues with using the WHERE clause in an INSERT statement in PHP?

Using the WHERE clause in an INSERT statement in PHP can cause syntax errors because the WHERE clause is typically used in UPDATE or DELETE statements...

How can the issue of "Unknown column 'tim321' in 'where clause" be resolved in PHP?

The issue "Unknown column 'tim321' in 'where clause" typically occurs when there is a typo in the column name specified in the WHERE clause of a SQL q...

When should the WHERE clause be used in an INSERT statement in PHP?

The WHERE clause should not be used in an INSERT statement in PHP. The WHERE clause is used in SQL statements like SELECT, UPDATE, and DELETE to speci...

How can the WHERE clause in a SQL query impact the execution of PHP code?

The WHERE clause in a SQL query can impact the execution of PHP code by affecting the result set returned by the query. If the WHERE clause is not pro...

What are the performance implications of using CONCAT in a WHERE clause in PHP MySQL queries?

Using CONCAT in a WHERE clause in PHP MySQL queries can have performance implications as it can prevent the use of indexes on the columns being concat...