Your question: How do you make several queries in PHP?

How do you run multiple queries?

To run a query with multiple statements, ensure that each statement is separated by a semicolon; then set the DSQEC_RUN_MQ global variable to 1 and run the query. When the variable is set to zero, all statements after the first semicolon are ignored.

How do I make multiple queries in SQL?

In this step, you create the union query by copying and pasting the SQL statements.

  1. On the Create tab, in the Queries group, click Query Design.
  2. On the Design tab, in the Query group, click Union. …
  3. Click the tab for the first select query that you want to combine in the union query.

How do I run multiple MySQL queries at once?

To combine result set of two or more queries using the UNION operator, these are the basic rules that you must follow:

  1. First, the number and the orders of columns that appear in all SELECT statements must be the same.
  2. Second, the data types of columns must be the same or compatible.

How do I run multiple SQL statements in phpMyAdmin?

Quick Steps

  1. Go to cPanel > Software >phpMyAdmin.
  2. Navigate to the area your SQL query will apply to. Select the database or the tables you want run the queries against.
  3. Click on the SQL tab.
  4. Type in your SQL query.
  5. Click on Go to execute the query.
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Can we use same prepared statement for multiple queries?

TL;DR: Yes, you can call execute on single Statement object multiple times, as long as you realize that any previously opened ResultSet will be closed.

How do you run multiple queries in a single statement?

Example 2: Steps to follow:

  1. Create a procedure with one or more select , and DML queries.
  2. Call it from java using CallableStatement .
  3. You can capture multiple ResultSet s executed in procedure. DML results can’t be captured but can issue another select. to find how the rows are affected in the table.

How many tables can be join in SQL query?

Theoretically, there is no upper limit on the number of tables that can be joined using a SELECT statement. (One join condition always combines two tables!) However, the Database Engine has an implementation restriction: the maximum number of tables that can be joined in a SELECT statement is 64.

How do I have multiple rows in one row in SQL?

STUFF Function in SQL Server

  1. Create a database.
  2. Create 2 tables as in the following.
  3. Execute this SQL Query to get the student courseIds separated by a comma. USE StudentCourseDB. SELECT StudentID, CourseIDs=STUFF. ( ( SELECT DISTINCT ‘, ‘ + CAST(CourseID AS VARCHAR(MAX)) FROM StudentCourses t2.

How do I run two queries in Python?

Executing multiple queries with execute()

If set to True , allows execute() to execute multiple queries separated by semicolons. When called with multi=True , the execute() method returns an iterator which can be used to access the result set produced by the queries.

How can I see unique values in MySQL?

MySQL – Distinct Values

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To get unique or distinct values of a column in MySQL Table, use the following SQL Query. SELECT DISTINCT(column_name) FROM your_table_name; You can select distinct values for one or more columns. The column names has to be separated with comma.

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