This tutorial explains about MySQL UPSERT command with the help of simple examples. An upsert is a smart operation that turns into an INSERT or UPDATE whichever is applicable. Also, it is an atomic transaction, which means completed in a single step. Let’s understand – If a record is new, then UPSERT triggers an INSERT. [...]

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This tutorial explains about MySQL UPSERT command with the help of simple examples. An upsert is a smart operation that turns into INSERT or UPDATE whichever is applicable. Also, it is an atomic transaction, which means complete in a single step. Let’s understand – If a record is new, then UPSERT triggers an INSERT. But, […]

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This tutorial explains about MySQL DATE data type and walks you through some of the standard date functions. It will help you use and handle dates more efficiently with MySQL. MySQL DATE is a temporal data type for accessing and setting dates by applications. It accepts DATE values only in YYYY-MM-DD format. And MySQL doesn’t […]

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This tutorial explains MySQL DATE data type and walks you through some of the standard date functions. It will help you use and handle dates more efficiently with MySQL. MySQL DATE data type The DATE is a temporal data type for accessing and setting dates by applications. It accepts DATE values only in YYYY-MM-DD format. [...]

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This tutorial explains MySQL LOWER()/LCASE() functions which convert the upper case characters of a string to the LOWER case. We’ll describe the functioning of this method with the help of simple examples. 1. LOWER()/LCASE() Syntax 2. LOWER()/LCASE() to convert text to lower case 3. LOWER()/LCASE() on table data 4. LOWER()/LCASE() on binary text Let’s now [...]

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This tutorial explains MySQL LOWER()/LCASE() functions which convert the upper case characters of a string to the LOWER case. We’ll describe the functioning of this method with the help of simple examples. 1. LOWER()/LCASE() Syntax 2. LOWER()/LCASE() to convert text to lower case 3. LOWER()/LCASE() on table data 4. LOWER()/LCASE() on binary text Let’s now […]

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This tutorial explains MySQL UPPER()/UCASE() functions which convert the lower case characters of a string to upper case. We’ll describe the functioning of this method with the help of simple examples. 1. UPPER()/UCASE() Syntax 2. UPPER()/UCASE() to convert text to upper case 3. UPPER()/UCASE() on table data 4. UPPER()/UCASE() on binary text Let’s now go through each of the section one by one. MySQL UPPER()/UCASE() Functions As stated initially, UPPER() is a built-in MySQL function which changes a string value to upper case. So, let’s now see the details and check out how can we use it. Syntax Below is

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This tutorial explains MySQL ORDER BY clause and its usage with both the ASC and DESC options. We’ll describe this MySQL statement with the help of simple examples. 1. ORDER BY Clause Syntax 2. ORDER BY W/O ASC or DESC 3. ORDER BY DESC 4. ORDER BY Relative Position 5. ORDER BY Two Fields ASC & DESC Let’s now go through each of the section one by one. MySQL ORDER BY Clause The MySQL SELECT command doesn’t return a sorted result set by default. Hence, to sort the output, you have to append the ORDER BY clause in the SELECT

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This tutorial explains all MySQL data types, their characteristics, and min, max as well as possible default values. We’ll describe their usages so that you can use them efficiently for creating schemas and tables. A MySQL table can have one or more fields with specific data types such as a string or date. However, there are more available in MySQL to ease up your job of collecting and storing data. It is also crucial that you understand which data type should you use and when. Here are some standard goals that define them what do they represent: 1. The data,

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This tutorial explains MySQL TIMESTAMP and TIMESTAMP field characteristics such as automated initialization and updating. We’ll describe their usages with the help of simple examples. 1. TIMESTAMP Syntax 2. TIMESTAMP Simple Examples 3. Set Timezone and Use Timestamp 4. Auto Init and Update Timestamp Let’s now go through each of the section one by one. MySQL TIMESTAMP The MySQL TIMESTAMP is a transient data type that contains a mixture of date and time. It is exactly 19 characters long. The structure of a TIMESTAMP field is as follows: Syntax # MySQL Timestamp YYYY-MM-DD HH:MM:SS The TIMESTAMP value shows in UTC

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