Load Data Infile On Duplicate Key Update Using Case' title='Load Data Infile On Duplicate Key Update Using Case' />My.SQL Tutorial My. SQL By Examples for Beginners.Read How to Install My.SQL and Get Started on how to install, customize, and get started with My.SQL. Summary of My.SQL Commands Used in this Tutorial.Conventional and Direct Path Loads.This chapter describes SQLLoaders conventional and direct path load methods.The following topics are covered.Creating and Deleting a Database CREATE DATABASE and DROP DATABASE.You can create a new database using SQL command CREATE DATABASE databaseName and delete a.The GnuCOBOL FAQ, How To, and COBOL cookbook.Whilst you are here, check out some content from the AskTom team How to Find and Delete Duplicate Rows with SQL I find your book very useful.I tried many of your.For detailed syntax, check My.SQL manual SQL Statement Syntax http dev.Load Data Infile On Duplicate Key Update Using Case' title='Load Data Infile On Duplicate Key Update Using Case' />DROP DATABASE database.Name. DROP DATABASE IF EXISTS database.Name. CREATE DATABASE database.Name. CREATE DATABASE IF NOT EXISTS database.Name. SHOW DATABASES.USE database. Name.SELECT DATABASE. SHOW CREATE DATABASE database.Name. DROP TABLE IF EXISTS table.Name,. CREATE TABLE IF NOT EXISTS table.Name. column. Name column.Type column. Attribute,.PRIMARY KEYcolumn.Name. FOREIGN KEY column.Nmae REFERENCES table.Name column. Nmae. Batman Arkham Unhinged Volume 3 more. SHOW TABLES. DESCRIBEDESC table.Name. ALTER TABLE table.Name. ALTER TABLE table.Name ADD column. Definition.ALTER TABLE table.Name DROP column.Name. ALTER TABLE table.Name ADD FOREIGN KEY column.Nmae REFERENCES table.Name column. NmaeALTER TABLE table.Name DROP FOREIGN KEY constraint.Name. SHOW CREATE TABLE table.Name. INSERT INTO table.Name. VALUES column.Value, column. 2Value.INSERT INTO table.Name. VALUES column.Value, column. 2Value.INSERT INTO table.Name column. 1Name,., column.NName. VALUES column.Value,., column. NValue.DELETE FROM table.Name WHERE criteria.UPDATE table. Name SET column.Name expr,. WHERE criteria.SELECT column. Name AS alias.NName AS alias. N.FROM table. Name.WHERE criteria. GROUP BY column.Name. ORDER BY column.Name. ASCDESC,. HAVING group.Constraints. LIMIT count offset count.SHOW WARNINGS An Example for the Beginners But NOT for the dummiesA My.SQL database server contains many databases or schemas.Each database consists of one or more tables.A table is made up of columns or fields and rows records.The SQL keywords and commands are NOT case sensitive.For clarity, they are shown in uppercase.The names or identifiers database names, table names, column names, etc.Hence, it is best to treat identifiers as case sensitive.SHOW DATABASESYou can use SHOW DATABASES to list all the existing databases in the server.SHOW DATABASES. Database.The databases mysql, informationschema and performanceschema are system databases used internally by My.SQL. A test database is provided during installation for your testing.Let us begin with a simple example a product sales database.A product sales database typically consists of many tables, e.Lets call our database southwind inspired from Microsofts Northwind Trader sample database.We shall begin with the first table called products with the following columns having data types as indicated and rows Database southwind.Table productsproduct.IDINTproduct. Code.CHAR3name. VARCHAR3.INTprice. DECIMAL1.PENPen Red. 50. 00.PENPen Blue. 80. 00.PENPen Black. 20.PECPencil 2. B1. 00.PECPencil 2. H8. 00.Creating and Deleting a Database CREATE DATABASE and DROP DATABASEYou can create a new database using SQL command CREATE DATABASE database.Name and delete a database using DROP DATABASE database.Name. You could optionally apply condition IF EXISTS or IF NOT EXISTS to these commands.For example. mysql CREATE DATABASE southwind.Query OK, 1 row affected 0.DROP DATABASE southwind.Query OK, 0 rows affected 0.CREATE DATABASE IF NOT EXISTS southwind.Query OK, 1 row affected 0.DROP DATABASE IF EXISTS southwind.Query OK, 0 rows affected 0.IMPORTANT Use SQL DROP and DELETE commands with extreme care, as the deleted entities are irrecoverable.THERE IS NO UNDO SHOW CREATE DATABASEThe CREATE DATABASE commands uses some defaults.You can issue a SHOW CREATE DATABASE database.Name to display the full command and check these default values.We use G instead of to display the results vertically.Try comparing the outputs produced by and G.CREATE DATABASE IF NOT EXISTS southwind.SHOW CREATE DATABASE southwind G.Database southwind.Create Database CREATE DATABASE southwind DEFAULT CHARACTER SET latin.Back Quoted Identifiers nameUnquoted names or identifiers such as database name, table name and column name cannot contain blank and special characters, or crash with My.SQL keywords such as ORDER and DESC.You can include blanks and special characters or use My.SQL keyword as identifier by enclosing it with a pair of back quote, in the form of name.For robustness, the SHOW command back quotes all the identifiers, as illustrated in the above example.Comments and Version Comments My.SQL multi line comments are enclosed within and end of line comments begins with followed by a space or.The 4. 01. 00. To check the version of your My.SQL server, issue query SELECT version.Setting the Default Database USEThe command USE database.Name sets a particular database as the default or current database.You can reference a table in the default database using table.Name directly. But you need to use the fully qualified database.Name. table. Name to reference a table NOT in the default database.In our example, we have a database named southwind with a table named products.If we issue USE southwind to set southwind as the default database, we can simply call the table as products.Otherwise, we need to reference the table as southwind.To display the current default database, issue command SELECT DATABASE.Creating and Deleting a Table CREATE TABLE and DROP TABLEYou can create a new table in the default database using command CREATE TABLE table.Name and DROP TABLE table.Name. You can also apply condition IF EXISTS or IF NOT EXISTS.To create a table, you need to define all its columns, by providing the columns name, type, and attributes.Lets create a table products in our database southwind.DROP DATABASE IF EXISTS southwind.Query OK, 1 rows affected 0.CREATE DATABASE southwind.Query OK, 1 row affected 0.SHOW DATABASES. Database.USE southwind. Database changed.SELECT DATABASE. SHOW TABLES.Empty set 0. CREATE TABLE IF NOT EXISTS products.ID INT UNSIGNED NOT NULL AUTOINCREMENT.Code CHAR3 NOT NULL DEFAULT.VARCHAR3. 0 NOT NULL DEFAULT.INT UNSIGNED NOT NULL DEFAULT 0.DECIMAL7,2 NOT NULL DEFAULT 9.PRIMARY KEY product.ID. Query OK, 0 rows affected 0.SHOW TABLES. Tablesinsouthwind.DESCRIBE products.Field Type Null Key Default Extra.ID int1. 0 unsigned NO PRI NULL autoincrement.Code char3 NO. NO.NO 0. NO 9. 99. 99.SHOW CREATE TABLE products G.Table products. CREATE TABLE products.ID int1. 0 unsigned NOT NULL AUTOINCREMENT.Code char3 NOT NULL DEFAULT.NOT NULL DEFAULT.NOT NULL DEFAULT 0.NOT NULL DEFAULT 9.PRIMARY KEY product.ID. ENGINEInno. DB DEFAULT CHARSETlatin.Explanations. We define 5 columns in the table products product.ID, product. Code, name, quantity and price.The types are product.ID is INT UNSIGNED non negative integers.Code is CHAR3 a fixed length alphanumeric string of 3 characters.VARCHAR3. 0 a variable length string of up to 3.We use fixed length string for product.Code, as we assume that the product.Code contains exactly 3 characters.On the other hand, we use variable length string for name, as its length varies VARCHAR is more efficient than CHAR.INT UNSIGNED non negative integers.DECIMAL1. 0,2 a decimal number with 2 decimal places.DECIMAL is precise represented as integer with a fix decimal point.On the other hand, FLOAT and DOUBLE real numbers are not precise and are approximated.DECIMAL type is recommended for currency.The attribute NOT NULL specifies that the column cannot contain the NULL value.NULL is a special value indicating no value, unknown value or missing value.In our case, these columns shall have a proper value.We also set the default value of the columns.The column will take on its default value, if no value is specified during the record creation.We set the column product.ID as the so called primary key.Values of the primary key column must be unique.Every table shall contain a primary key.Sample Subjects from the Archives.The Archives of the Teradata.Forum contains over 3.To help navigate the Archives, there are additional indexes For a list of the most recent threads, see Recent Threads.Yearly Indexes containing the threads posted during a given year.Index. By Date Indexes containing the threads posted during a given month and year.January 2. 00. 9 Index.The best way to find threads on a specific subject is to use the search box.
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Study our tips for the game.Watch it in action.Purchase From Amazon Walmart Best Buy Gamestop.Stardew Valley is an already great game made indispensable by the Switch.The 2. 01. 6 farmingdatinglife sim lets you forget your worries and embrace a soothingly banal life in the countryside.You water your crops in the morning, and think about how youre going to improve your farm.You head in to town and stop by the general store to get seeds and chat up the cute boy youve had your eye on.And if you want, you explore the mysterious mine, gather magical materials, and uncover the deeper secrets of the valley.Its a game with a seemingly endless amount to do, and it fits perfectly onto a handheld.A Good Match For Fans of games like Animal Crossing, Harvest Moon, or Minecraft.Anyone looking for a relaxing but terrifyingly addictive game.Not A Good Match For Anyone looking for a straightforward game.Stardew Valley is calming and low key, but its also extremely complex and doesnt alway explain itself that well.Read our impressions of the Switch version.Study our tips for playing the game.Watch it in action.Purchase From Available digitally on the Nintendo e.Shop. Look, we werent expecting much from Mario Rabbids Kingdom Battle either.We were right there laughing along with the rest of the internet when we first saw those leaked promotional images of Ubisofts annoying Rabbid mascots dressed up as iconic Mario characters.But then Ubisoft showed the game itself, and wait, a Mario inspired take on XCOM tactics One that looks like a first party Nintendo game thanks to Nintendos developers lending a hand with productionAs it turned out, yep, Mario Rabbids is a fantastic game.Its a smart, streamlined take on the XCOM style of turn based, positional tactics.Its beautiful looking, and has an excellent musical score.And its just really goofy and fun.Each fight is an unpredictable scrum between team Mario and a bunch of chittering, idiot Rabbids, and the constantly escalating challenge will force you to think on your toes.And its digestible, 5 1.Switch. A Good Match For Anyone waiting for a good Switch strategy game, XCOM fans, people who think they might like XCOM but are put off by how complicated it seems.Not A Good Match For Anyone who just cant stand Ubisofts Rabbids.The game is actually a lot more charming than the corny, Minions like mascots on the cover might suggest, but if you really hate em, you really hate em.Read our review. Watch it in action.Purchase From Amazon Walmart Best Buy Gamestop.The makers of Thumper bill it as a rhythm violence game, which is a cheeky description but also an accurate one.The setup is simple You control a glowing beetle as it zooms along a track through some sort of neon Hell dimension.In your path are glowing gems and various obstacles.You press buttons in time with the grinding, undulating music to get past those obstacles without blowing up.The music is relentless.The beats are ferocious.The pace is unstoppable.Thumper takes a classic formula and strips it down to its rawest, most hypnotic base elements.The result is one of the finest rhythm games in years.A Good Match For People who like rhythm games, people who like difficult rhythm games.Not A Good Match For Those who dont want to play Switch games with headphones, those who get easily frustrated.Read our impressions of the PC version.Watch it in action.Purchase From Available digitally on the Nintendo e.Shop. Why have one good thing when you can have two Good question.In the case of Puyo Puyo Tetris, those two good things are.Tetris and Puyo Puyo, a pair of place the dropping shapes games that are equally beloved, if not equally well known, all around the world.In single player, online or splitscreen multiplayer, you and up to three friends can compete in hectic matches that flip and flop from Tetris to Puyo Puyo and back again.Its a chaotic good time.A Good Match For Fans of Tetris and fans of Puyo Puyo, obviously.Also, anyone looking for a fun competitive puzzle game to play with friends.Not A Good Match For Those looking for a fleshed out singleplayer game, anyone who prefers to solve puzzles without a time limitation.Read our impressions of the game.Watch it in action.Purchase From Amazon Walmart Best Buy Gamestop.Steam. World Dig 2 takes the backtracking, exploration and gradual upgrades of a Metroid game and combines them with the strategic spelunking of Dig Dug.The result is a charming, engrossing side scroller loaded with smart ideas and clever challenges.Thats. pretty much all we need to say about it.Its a straightforward gaming pleasure.A Good Match For Fans of sidescrollers, Metroid inspired games, and digging.Not A Good Match For Anyone who hates platforming.Steam. World Dig 2 isnt as hard as some other similar games, but it does have some tricky challenges.Read our impressions of the Switch version.Watch it in action.Purchase From Available digitally on the Nintendo e.Shop. Something is wrong with Isaacs mom She thinks that she can hear God.And God, disturbingly enough, has instructed her to kill Isaac.The only way Isaac can get out of that hellish situation is by jumping into his basementwhich happens to be endless, and full of terrors.Thankfully, these demons can be defeated by directing Isaacs tears, twin stick shooter style, across Zelda like dungeons.Well. if Zelda dungeons were full of horrifying hellspawn, poop, and tons of mysterious items that you dont know how to use.The Binding of Isaac has gotten several iterations over the years, and Afterbirth is the biggest expansion yet.A Good Match For Players who like a challenge, especially of the roguelike variety.A lot of the appeal with the Binding of Isaac is how constantly it will surprise you with challenges youve never encountered before.Not A Good Match For Players who are sensitive to gross stuff or jokes about religion, or people who are just looking to relax while playing a game.Watch it in action.Purchase From Amazon Walmart Best Buy Gamestop.Ah, the blue shell.There may be no better metaphor for the bleakness of life.One minute youre cruising along, on top of the world, and then BAM, youre totally hosed.Just when you thought you had it in the bag, life throws a blue shell.Mario Kart 8 isnt really all that philosophical, of course.Its the same Mario Kart formula re tuned and polished to an absurd degree, easily one of the most fun party games you can play on the Switch or any other console.Best of all, the Deluxe version on Switch includes all the DLC maps and characters from the Wii U game and also completely overhauls that versions woebegone battle mode.Mario Kart 8 Deluxe is the definitive version of an already great game.A Good Match For People who like moving really fast, people who like seeing Luigi look really mean. Betrayals That Changed The Course Of History. Many battles and wars that shaped the history of the world were concluded not only from the efforts of leaders and heroes but by spies as well. Numerous espionage and spy hunting efforts were launched to gain information and secure victories, which many times proved successful. Because of intelligence brought by agents and double crossers, many lives were saved or lost and history was shaped. Here are 2. 5 betrayals that changed the course of history. Pizarro held hostage Emperor Atahualpa after defeating an army with a limited number of men. He asked for gold and silver as ransom, but he strangled Atahualpa to death. Activities for Kids worksheets, games, parties, colouring in books pages, holiday activities and more from Essential kids. |
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