General MySQL Oracle SQL Server

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Create Tables for ODBC Connection Testing in Oracle
How To Create Tables for ODBC Connection Testing in Oracle? If you want to follow the tutorial exercises in the sections below, you need to create a user account and a table for ODBC connection testing as shown here: SQL&gt; CONNECT system/retneciyf Connected. SQL&gt; CREATE USER fyi IDENTIF... 2016-10-15, 1260👍, 0💬

Retrieve Field Values from RECORD Variables in Oracle
How To Retrieve Values from Data Fields in RECORD Variables in Oracle? If a variable is a RECORD variable with data fields assigned values, you can retrieve those values out of its data fields by using fields names prefixed with variable name as "variable.field_name". Here is a sample script showing... 2018-09-01, 1253👍, 0💬

Define Variables before Procedures and Functions in Oracle
What Is the Order of Defining Local Variables and Sub Procedures/Functions in Oracle? In the declaration part, you must define all local variables before defining any sub procedures or sub functions. See the following sample script: SQL&gt; CREATE OR REPLACE PROCEDURE WELCOME AS 2 SITE CHAR(80) ... 2018-03-18, 1251👍, 0💬

How Data Locks Are Respected in Oracle
How Data Locks Are Respected in Oracle? Here are the rules on how data locks are respected: All statements ignore data locks owned its own transaction. SELECT query statements ignores data locks owned by any transactions. INSERT, UPDATE, and DELETE statements in a READ COMMITTED transaction will wai... 2019-08-08, 1249👍, 0💬

Build Data Dictionary View in Oracle
How To Build Data Dictionary View of an New Database in Oracle? This is Step 9. The Oracle Administrator Guide suggests to run two SQL scripts provided by Oracle as shown bellow: SQL&gt; @/u01/oracle/rdbms/admin/catal og.sqlSQL&gt; @/u01/oracle/rdbms/admin/catpr oc.sql  ⇒ Introduction to Ora... 2019-03-27, 1249👍, 0💬

Show All Tables in the Database in Oracle
How To Get a List of All Tables in the Database in Oracle? If you don't like to use a SELECT statement to get a list of all tables in the current database, you can use the Reports view to do this as shown in the following tutorial example: Click menu View. Selects Reports from the menu. Open Reports... 2018-10-08, 1231👍, 0💬

Update Values in a Table in Oracle
How To Update Values in a Table in Oracle? If you want to update some values in one row or multiple rows in a table, you can use the UPDATE statement. The script below shows a good example: UPDATE fyi_links SET counts = 999, notes = 'Good site.' WHERE id = 101; 1 row updated. SELECT * FROM fyi_links... 2020-01-21, 1230👍, 0💬

Assign Field Values into RECORD Variables in Oracle
How To Assign Values to Data Fields in RECORD Variables in Oracle? If a variable is a RECORD variable, you can assign values to its data fields by using fields names prefixed with variable name as "variable.field_name". Here is a sample script assigning values to data fields of RECORD variables: CRE... 2018-09-01, 1181👍, 0💬

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General MySQL Oracle SQL Server