Is there a IF statement in SQLite?
In SQLite, iif() is a conditional function that returns the second or third argument based on the evaluation of the first argument. It’s logically equivalent to CASE WHEN X THEN Y ELSE Z END . iif() is an abbreviation for Immediate IF. The iif() function was introduced in SQLite 3.32.
Does SQLite have functions?
SQLite has many built-in functions to perform processing on string or numeric data. Following is the list of few useful SQLite built-in functions and all are case in-sensitive which means you can use these functions either in lower-case form or in upper-case or in mixed form.
What are the three arguments for the substr () function in SQLite?
SQLite substr() returns the specified number of characters from a particular position of a given string. A string from which a substring is to be returned. An integer indicating a string position within the string X. An integer indicating a number of characters to be returned.
Is null in SQLite?
SQLite IS NOT NULL operator.
How do I match a character in SQL?
SQL pattern matching enables you to use _ to match any single character and % to match an arbitrary number of characters (including zero characters). In MySQL, SQL patterns are case-insensitive by default. Some examples are shown here. Do not use = or <> when you use SQL patterns.
How do I trim a specific character in SQL?
SQL Server TRIM() Function The TRIM() function removes the space character OR other specified characters from the start or end of a string. By default, the TRIM() function removes leading and trailing spaces from a string. Note: Also look at the LTRIM() and RTRIM() functions.
What are SQLite indexes?
Advertisements. Indexes are special lookup tables that the database search engine can use to speed up data retrieval. Simply put, an index is a pointer to data in a table. An index in a database is very similar to an index in the back of a book.
How do I drop a column in SQLite?
DB Browser for SQLite allows you to add or drop columns. In the main view, tab Database Structure , click on the table name. A button Modify Table gets enabled, which opens a new window where you can select the column/field and remove it.
Why is NVL used in SQL?
NVL lets you replace null (returned as a blank) with a string in the results of a query.